Free Printable 8B adolygu llyfrennau 5, 6 a 7

1.

Increase £350 by 12%...

a)

£392

b)

£308

c)

£42

d)

£408

2.

Increase £520 by 26%...

a)

£655.20

b)

£790.40

c)

£384.80

d)

£582.40

3.

Decrease £2200 by 8%...

a)

£2024

b)

£1980

c)

£2002

d)

£2376

4.

Decrease £140 by 22%...

a)

£109.20

b)

£100.80

c)

£30.80

d)

£39.20

5.

Decrease £680 by 86%...

a)

£95.20

b)

£584.80

c)

£462.40

d)

£285.60

6.

Increase £300 by 82%...

a)

£546

b)

£246

c)

£384

d)

£525

7.

Simplify $\frac{8}{10}$

a)

$\frac{2}{10}$

b)

$\frac{0.8}{10}$

c)

$\frac{4}{5}$

d)

$\frac{80}{100}$

8.

Simplify $\frac{35}{100}$

a)

$\frac{7}{20}$

b)

$\frac{17.5}{50}$

c)

$\frac{3.5}{10}$

d)

$\frac{70}{200}$

9.

$\frac{28}{30}$ - $\frac{15}{30}$

a)

$\frac{13}{30}$

b)

$\frac{13}{0}$

c)

$\frac{13}{100}$

d)

$\frac{43}{30}$

10.

$\frac{1}{4}$ + $\frac{3}{8}$

a)

$\frac{9}{7}$

b)

$\frac{5}{12}$

c)

$\frac{4}{12}$

d)

$\frac{5}{8}$

11.

$\frac{9}{10}$ - $\frac{2}{5}$

a)

$\frac{7}{5}$

b)

$\frac{1}{2}$

c)

$\frac{7}{10}$

d)

$\frac{13}{10}$

12.

Express $\frac{15}{2}$ as a mixed number

a)

$5\frac{5}{2}$

b)

$7\frac{1}{2}$

c)

$\frac{2}{15}$

d)

$\frac{1}{7.5}$

13.

Express $2\frac{3}{5}$ as an improper fraction.

a)

13/5

b)

6/5

c)

11/5

d)

6/5

14.

$\frac{1}{5}$ as a percentage

a)

15%

b)

25%

c)

20%

d)

0.15

e)

0.2

15.

$\frac{3}{5}$ as a percentage

a)

35%

b)

15%

c)

60%

d)

30%

16.

$\frac{3}{5}$ of 30 =

(a)

17.

$\frac{3}{4}$ of 16 =

(a)

18.

$\frac{7}{9}$ of 27 =

(a)

19.

$\frac{4}{7}$ of 35 =

(a)

20.

$\frac{1}{2}$ x $\frac{3}{4}$

a)

$\frac{1}{3}$

b)

$\frac{3}{8}$

c)

$\frac{3}{4}$

d)

$\frac{4}{6}$

21.

$\frac{4}{5}$ x $\frac{2}{3}$

a)

$\frac{8}{15}$

b)

$\frac{4}{15}$

c)

$\frac{6}{8}$

d)

$\frac{8}{5}$

22.

$\frac{1}{4}$ ÷ $\frac{2}{5}$

a)

$\frac{5}{8}$

b)

$\frac{2}{20}$

c)

$\frac{1}{10}$

d)

$\frac{3}{9}$

23.

$\frac{4}{9}$ ÷ $\frac{1}{2}$

a)

$\frac{8}{9}$

b)

$\frac{5}{11}$

c)

$\frac{6}{10}$

d)

$\frac{4}{18}$

24.

$\frac{3}{7}\div\frac{2}{5}$

a)

$\frac{6}{35}$

b)

$\frac{14}{15}$

c)

$1\ \frac{1}{14}$

d)

$\frac{1}{7}$

25.

a)

5/4

b)

4/5

c)

11/4

d)

4/11

26.

a)

21/4

b)

9/4

c)

4/9

d)

2/4

27.

a)

b)

c)

d)

28.

$1\frac{2}{5}+6\frac{1}{4}$

a)

$7\frac{11}{20}$

b)

$7\frac{3}{9}$

c)

$7\frac{4}{5}$

d)

$7\frac{13}{20}$

29.

$\frac{4}{7}+\frac{1}{3}$

a)

$\frac{19}{21}$

b)

$\frac{5}{21}$

c)

$\frac{20}{21}$

d)

$\frac{5}{10}$

30.

What is 10% of £50?

a)

£5

b)

£45

c)

£40

d)

£10

31.

What is 10% of £80?

a)

£55

b)

£40

c)

£20

d)

£8

32.

What is 2% of £300?

a)

£3

b)

£6

c)

£30

d)

£150

33.

What is 15% of £120?

a)

£8

b)

£12

c)

£180

d)

£18

34.

What is 30% of £150?

a)

45

b)

5

c)

15

d)

4.5

35.

What is 67% as a decimal

a)

67

b)

6.7

c)

0.67

d)

$\frac{67}{100}$

36.

Increase £350 by 12%.

a)

£392

b)

£308

c)

£42

d)

£408

37.

Increase £2600 by 4%.

a)

£2704

b)

£2730

c)

£2756

d)

£2678

38.

Decrease £140 by 22%.

a)

£109.20

b)

£100.80

c)

£30.80

d)

£39.20

39.

Decrease £220 by 20%.

a)

£170

b)

£176

c)

£200

d)

£44

40.

Increase 100 by 10%.

a)

120

b)

180

c)

150

d)

110

41.

Decrease £40 by 20%

a)

£9

b)

£21

c)

£32

d)

£20

42.

Reduce 360 by 10%

a)

£342

b)

£324

c)

£328

d)

£300

43.

164 out of 200 as a percentage.

a)

82%

b)

16.4%

c)

32.8%

d)

80%

44.

60 out of 80 as a percentage.

a)

60%

b)

75%

c)

80%

d)

20%

45.

27 out of 50 as a percentage.

a)

54%

b)

27%

c)

46%

d)

18.5%

46.

5 out of 20 as a percentage.

a)

25%

b)

40%

c)

10%

d)

20%

47.

Cadi goes on holiday to New York. She converts £400 into dollars, The currency exchange rate is £ 1 = $1.50. How Many Dollars will Cadi get?

a)

$6000

b)

$650

c)

$640

d)

$600

48.

How would you change 500 Australian Dollars into British Pounds.

a)

500 x 1.76

b)

500 x 1.28

c)

500 $\div$ 1.76

d)

500 $\div$ 1.28

49.

How would you change £500 into Australian Dollars.

a)

500 x 1.76

b)

500 x 1.28

c)

500 $\div$ 1.76

d)

500 $\div$ 1.28

50.

How would you change 500 American Dollars into British Pounds.

a)

500 x 1.76

b)

500 x 1.28

c)

500 $\div$ 1.76

d)

500 $\div$ 1.28

51.

How would you change £500 into American Dollars.

a)

500 x 1.76

b)

500 x 1.28

c)

500 $\div$ 1.76

d)

500 $\div$ 1.28

52.

Troswch 6m i cm

Convert 6m to cm

a)

60 cm

b)

600 cm

c)

6000 cm

d)

0.6 cm

53.

Troswch 5.3 km i m

Convert 5.3 km to m

a)

53 m

b)

530 m

c)

5300 m

d)

53000 m

54.

Troswch 210 mm i cm

Convert 210 mm to cm

a)

2.1 cm

b)

21 cm

c)

210 cm

d)

2100 cm

55.

Troswch 0.84 m i cm

Convert 0.84 m to cm

a)

0.084 cm

b)

0.0084 cm

c)

8.4 cm

d)

84 cm

56.

Troswch 3000 g i kg

Convert 3000 g to kg

a)

0.3 kg

b)

3 kg

c)

30 kg

d)

300 kg

57.

Troswch 5 kg i g

Convert 5 kg to g

a)

50 g

b)

500 g

c)

5000 g

d)

50000 g

58.

Troswch 560 g i kg

Convert 560 g to kg

a)

56 kg

b)

5.6 kg

c)

0.56 kg

d)

0.056 kg

59.

Troswch 256 g i kg

Convert 256 g to kg

a)

25.6 kg

b)

2.56 kg

c)

0.256 kg

d)

0.0256 kg

60.

Troswch 2000 ml i l

Convert 2000 ml to l

a)

20 l

b)

2 l

c)

20000 l

d)

200 l

61.

Troswch 65 l i ml

Convert 65 l to ml

a)

650 ml

b)

6500 ml

c)

65000 ml

d)

650000 ml

62.

Pa mas sy'n cael ei ddangos ar y graddfa?

What mass is shown on the scale?

a)

3.5kg

b)

3.25kg

c)

3.1kg

d)

3.2kg

63.

Pa gyfaint sy'n cael ei ddangos ar y graddfa?

What volume is shown on this scale?

a)

125ml

b)

150ml

c)

120ml

d)

110ml

64.

Pa fas sy'n cal ei ddangos ar y graddfa?

What mass is shown on the scale?

a)

0.5kg

b)

4kg

c)

0.4kg

d)

0.8kg

65.

Pa dymheredd sy'n cael ei ddangos ar y graddfa?

What temperature is shown on the thermometer?

a)

21^oC

b)

22^oC

c)

25^oC

d)

20^oC

66.

Pa fas sy'n cael ei ddangos?

What mass is shown here?

a)

65 kg

b)

6.5 kg

c)

55 kg

d)

75 kg

67.

Pa gyfaint sy'n cael ei ddangos?

What volume is shown here?

a)

120 ml

b)

140 ml

c)

125 ml

d)

150 ml

68.

Faint o'r gloch yw hi?

What time is it?

a)

Hanner awr wedi tri

Half past three

b)

Ugain munud i bump

Twenty minutes to five

c)

Pum munud ar ugain wedi pedwar

Twenty-five minutes past four

d)

Chwarter i bump

A quarter to five

69.

Faint o'r gloch yw hi?

What time is it?

a)

Pum munud ar ugain wedi un ar ddeg

Twenty-five past eleven

b)

Chwarter wedi un

A quarter past one

c)

Ugain munud wedi deuddeg

Twenty minutes past twelve

d)

Hanner awr wedi tri

Half past three

70.

Os ydych chi'n cyrraedd yr ysgol am 7:35am ac mae cinio am 11:55am, faint o amser sydd rhaid i chi aros nes cinio?

If you get to school at 7:35am and lunch is at 11:55 am, how long do you have to wait until lunch?

a)

3 awr 20 munud

3 hours 20 minutes

b)

3 awr 40 munud

3 hours 40 minutes

c)

4 awr 20 munud

4 hours 20 minutes

d)

4 awr 40 munud

4 hours 40 minutes

71.

Mae Kelsey a'i theulu yn mynd i'r theatr. Mae'r sioe yn dechrau am 1:15pm ac yn gorffen am 3:30pm. Pa mor hir yw'r sioe?

Kelsey and her family went to a play. The play started at 1:15pm and ended at 3:30pm. How long did the play last?

a)

1 awr 15 munud

1 hour 15 minutes

b)

1 awr 45 munud

1 hour 45 minutes

c)

2 awr 45 munud

2 hours 45 minutes

d)

2 awr 15 munud

2 hours 15 minutes

72.

Os ydych chi'n dal y bws am 7:25 yn Newport ac arno am 44 munud, ble rydych chi'n gadael y bws?If you got on the 7:25 bus from Newport and rode for 44min, where did you get off ?

(a)

73.

Rydw i angen bod yn Boxby erbyn 3pm. Pa fws dylen i ddal yn Blackmore (opposite Hopital)?

I want to be in Boxby by 3pm. Which bus should I catch from Blackmore (opposite Hospital)?

a)

1315

b)

1515

c)

1415

d)

1215

74.

Sawl munud mewn 2 awr 15 munud?

How many minutes in 2 hours and 15 minutes?

a)

124 munud

124 minutes

b)

139 munud

139 minutes

c)

153 munud

153 minutes

d)

135 munud

135 minutes

75.

Mae 6 awr yn hafal i ________ munud

6 hours is the same amount of time as ________ minutes

a)

36

b)

3,600

c)

360

d)

36,000

76.

Trefnwch y degolion o'r lleiaf i'r mwyaf:

Order the decimals from least to greatest:

0.38, 0.4, 0.36

a)

0.38, 0.4, 0.36

b)

0.4, 0.36, 0.38

c)

0.36, 0.4, 0.48

d)

0.36, 0.38, 0.4

77.

Trefnwch y degolion o'r lleiaf i'r mwyaf:

Order from least to greatest:

1.25 1.52 1.02 1.50

a)

1.25 1.52 1.02 1.50

b)

1.52 1.02 1.50 1.25

c)

1.02 1.50 1.25 1.52

d)

1.02 1.25 1.50 1.52

78.

Trefnwch o'r lleiaf i'r mwyaf:

Write in order from least to greatest:

0.75, 0.39, 0.2, 0.35

a)

0.2, 0.35, 0.39, 0.75

b)

0.75, 0.39, 0.35, 0.2

c)

0.2, 0.39, 0.35, 0.75

d)

0.75, 0.35, 0.39, 0.2

79.

Trefnwch o'r lleiaf i'r mwyaf:

Order from least to greatest:

1.25, 1.52, 1.02, 1.50

a)

1.25 1.52 1.02 1.50

b)

1.52 1.02 1.50 1.25

c)

1.02 1.50 1.25 1.52

d)

1.02 1.25 1.50 1.52

80.

Pa ddegolyn yw'r lleiaf?

Which decimal is the smallest? 0.56 0.65 0.605 0.506

a)

0.56

b)

0.65

c)

0.605

d)

0.506

81.

Talgrynnwch 103.65 i 1 lle degol

Round 103.65 to 1 decimal place

(a)

82.

Talgrynnwch 23.49 i 1 lle degol

Round 23.49 to 1 decimal place

(a)

83.

Talgrynnwch 1.823 i'r rhif cyfan agosaf.

Round 1.823 to the nearest whole number.

a)

1

b)

1.8

c)

2

d)

2.8

84.

Talgrynnwch 6.64 i 1 lle degol

Round 6.64 in 1 decimal place

(a)

85.

Talgrynnwch 46.7863 i 3 lle degol

Round 46.7863 to 3 decimal places

a)

46.768

b)

46.786

c)

46.358

d)

46786

86.

Talgrynnwch 15.34792 i 3 lle degol

Round 15.34792 to 3 decimal places

a)

15.347

b)

15.348

c)

16.356

d)

16.348

87.

Talgrynnwch 134.67398 i 2 le degol

Round 134.67398 to 2 decimal places

a)

134.67

b)

134.700

c)

134.6

d)

134.68

88.

Talgrynnwch 35.192 i 2 le degol

Round 35.192 to 2 decimal places

a)

35.1

b)

35.18

c)

35.2

d)

35.19

89.

Teithiodd y teulu Bell, gan yrru am 10.9 awr, wedyn 8.6 awr, wedyn 12.4 awr. Beth yw cyfanswm yr amser gyrru?

The Bell family travelled and drove 10.9 hours; then 8.6 hours; then 12.4 hours. What is the total driving time?

a)

31.9 awr

31.9 hours

b)

30 awr

30 hours

c)

31 milltir

31 miles

d)

31.8 awr

31.8 hours

90.

0.625 + 0.34

a)

0.965

b)

0.659

c)

0.929

d)

0.6284

91.

31.5 + 6.24

a)

37.74

b)

93.9

c)

32.124

d)

30.74

92.

86.5 + 4.83

a)

91.33

b)

90.33

c)

96.33

d)

80.63

93.

94.9 - 41.871

(a)

94.

1.24-0.7

a)

0.44

b)

1.4

c)

0.55

d)

0.54

95.

5.4-2.43

a)

3.01

b)

2.97

c)

3.97

d)

1.34

96.

16.06 - 10.1

a)

4.96

b)

5.95

c)

5.96

d)

4.96

97.

0.3 x 0.5

a)

0.15

b)

1.5

c)

15

d)

150

98.

1.2 x 2.1

a)

25.2

b)

0.36

c)

2.52

d)

3.6

99.

2.39 x 4.37 =

a)

10.4443

b)

104.443

c)

10444.3

d)

1.04443

100.

Mae Uber yn costio $2.25 y milltir. Mae Joshua angen teithio 8.7 milltir o'i dy i'r sinema. Faint fydd gost y daith?

To take an Uber, Joshua must pay $2.25 per mile. He wants to go to the movies which is 8.7 miles from his house. How much will it cost Joshua to take an Uber from his house to the movie theater?

a)

$19.58

b)

$19.57

c)

$18.58

d)

$18.57

101.

Mae plymwr yn torri darn o beipen 21.48m yn dri darn hafal. Beth yw hyd pob darn?

A plumber cuts 21.48 meters of pipe into 3 equal pieces of length. How long is each piece of pipe?

(a)

102.

$12.24\div1.2=$

a)

102

b)

10.2

c)

.099

103.

24 ÷ 0.5

(a)

104.

1.6 ÷ 0.4

(a)

105.

Pa lythyren sydd ar pwynt (4, -6)?

Which letter matches the coordinate (4, -6)?

a)

G

b)

Z

c)

K

d)

None of the above

106.

Beth yw cyfesurynnau E?

Where is point E located?

a)

( 2, 0 )

b)

( 2 , 2 )

c)

( 0 , 2 )

d)

( 0 , 0 )

107.

Ym mha bedrant mae pwynt B?

Name the quadrant where POINT B is located.

a)

Pedrant I

Quadrant I

b)

Pedrant II

Quadrant II

c)

Pedrant III

Quadrant III

d)

Pedrant IV

Quadrant IV

108.

Beth yw cyfesurynnau pwynt H?

Give the coordinates for POINT H.

a)

(-1, 2)

b)

(1, -2)

c)

(-1, -2)

d)

(1 , 2)

109.

Beth yw cyfesurynnau pwynt D?

Identify the coordinates of the point D

a)

(4,0)

b)

(4,1)

c)

(0,4)

d)

(1,4)

110.

Beth yw cyfesurynnau cornel olaf y petryal?

What will be the last coordinate of the rectangle?

a)

(1, 3)

b)

(8, 4)

c)

(8, 3)

d)

(7, 3)

111.

Beth yw cyfesurynnau pwynt X?

What are the coordinates of point X?

a)

(5,2)

b)

(2,3)

c)

(4,4)

d)

(6,6)

112.

Cyfrifwch arwynebedd y trapesiwm

Calculate the area of the trapezium

a)

224cm²

b)

112cm²

c)

128cm²

d)

256cm²

113.

Cyfrifwch arwynebedd y trapesiwm

Calculate the area of the trapezium

a)

250cm²

b)

125cm²

c)

25cm²

d)

12.5cm²

114.

Cyfrifwch arwynebedd y trapesiwm

Calculate the area of the trapezium

a)

40cm²

b)

20cm²

c)

25cm²

d)

80cm²

115.

Cyfrifwch arwynebedd y trapesiwm

Calculate the area of the trapezium

a)

38cm²

b)

49.5cm²

c)

76cm²

d)

36cm²

116.

Cyfrifwch arwynebedd y trapesiwm

Calculate the area of the trapezium

a)

18cm²

b)

12.6cm²

c)

7.2cm²

d)

25.2cm²

117.

Y fformiwla ar gyfer arwynebedd cylch yw ...

The formula for the area of a circle is ...

a)

$A=\pi d^2$

b)

$A=2\pi r$

c)

$A=\pi\cdot d$

d)

$A=\pi r^2$

118.

Rwy'n medru cyfrifo arwynebedd cylch o wybod ei radiws neu ddiamedr.

Beth yw arwynebedd y cylch ar y chwith? Talgrynnwch eich ateb i'r degfed agosaf.

What is the area of the circle on the left? Give your answer to the nearest tenth.

a)

$31.4\ cm^2$

b)

$15.5\ cm^2$

c)

$78.5\ cm^2$

119.

Rwy'n medru cyfrifo arwynebedd cylch o wybod ei radiws neu ddiamedr.

Beth yw arwynebedd y cylch ar y chwith? Talgrynnwch eich ateb i'r degfed agosaf.

What is the area of the circle on the left? Give your answer to the nearest tenth.

a)

$12.6\ cm^2$

b)

$24.1\ cm^2$

c)

$50.2\ cm^2$

120.

Beth yw hyd diamedr y cylch?

What is the length of the diameter of the circle?

(a)

121.

Llinell sy'n mynd ar draws y cylch trwy'r canol.

A line that goes from one end of the circle to the other and crosses the center point.

a)

canol

b)

diamedr

c)

dime eater

d)

radiws

122.

Beth yw cylchedd y cylch?

What is the circumference of this circle ?

a)

3.14 cm

b)

37.68 cm

c)

24 cm

d)

68.4 cm

123.

Beth yw arwynebedd y cylch?

What is the area of this circle?

a)

1385.44 $ft^2$

b)

2142.12 $ft^2$

c)

5541.77 $ft^2$

d)

1289.12 $ft^2$

124.

Cyfrifwch yr Arwynebedd gan ddefnyddio'r fformiwla: A = $\pi r^2$

Find the Area using this formula: $A=\pi r^2$

a)

18.84 $in^2$

b)

113.04 $in^2$

c)

37.68 $in^2$

d)

59.1576 $in^2$

125.

Cysylltwch y fformiwlau gyda'r mesuriadau.

Match the formulas to the measurements indicated.

a)

I ddarganfod arwynebedd cylch defnyddiwch:

1.

A= $\pi r^2$

b)

I ddarganfod cylchedd cylch defnyddiwch:

2.

C= $\pi d$

c)

I ddarganfod diamedr cylch defnyddiwch:

3.

2r

d)

I ddarganfod radiws cylch defnyddiwch:

4.

d/2

126.

Mae gan long mordeithio ffenest crwn mawr. Y diamedr yw 6 metr. Beth yw arwynebedd y ffenest?

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?

a)

31.25 m²

b)

29.55 m²

c)

30.36 m²

d)

28.26 m²

127.

Cyfrifwch arwynebedd y siâp. Rhowch eich ateb i 1 lle degol.

Find the area of the shape. Give your answer to 1 decimal place.

a)

63.6cm²

b)

254.5cm²

c)

127.2cm²

d)

56.5cm²

128.

Cyfrifwch arwynebedd y siâp. Rhowch eich ateb i 1 lle degol.

Find the area of the shape. Give your answer to 1 decimal place.

a)

39.3cm²

b)

78.5cm²

c)

15.7cm²

d)

31.4cm²

129.

Cyfrifwch arwynebedd y siâp cyfansawdd. Rhowch eich ateb i 1 lle degol.

Find the area of the compound shape. Give your answer to 1 decimal place.

a)

58.3cm²

b)

143.1cm²

c)

86.5cm²

d)

67.7cm²

130.

Cymhareb y cownteri coch i gownteri glas yw 3 : 1

Pa ffracsiwn o'r cownteri sy'n las?

The ratio of red counters to blue counters is 3 : 1

What fraction of the counters are blue?

a)

¹/₄

b)

³/₄

c)

¹/₃

d)

³/₁

131.

Cymhareb y bechgyn i ferched yn nosbarth Ella yw 3 i 4. Mae 20 merch yn nosbarth Ella. Sawl bachgen sydd yn nosbarth Ella?

The ratio of boys to girls in Ella's class is 3 to 4. There are 20 girls in Ella's class. How many boys are in her class?

a)

15

b)

12

c)

18

d)

24

132.

Symleiddiwch y gymhareb

30:15

Simplify the ratio of
30 : 15

a)

2 : 1

b)

1 : 2

c)

3 : 1

d)

30 : 15

133.

Beth yw cymhareb y teils coch i deils gwyn?

What is the ratio of red to white tiles?

a)

13 : 12

b)

12 : 13

c)

12 : 25

d)

13 : 25

134.

Mae tywod a sment yn y gymhareb 7 : 2

Os ydych wedi defnyddio 28 rhaw o dywod sawl rhaw o sment sydd angen?

Sand and cement are in the ratio 7 : 2

If you used 28 shovels of sand how many shovels of cement are needed?

a)

2

b)

4

c)

6

d)

8

135.

Beth yw cymhareb yr afalau coch i afalau gwyrdd?

What is the ratio of red apples to green apples?

a)

7 : 3

b)

4 : 7

c)

4 : 3

d)

3 : 4

136.

Symleiddiwch

Simplify

a)

1:3

b)

4:5

c)

3:4

d)

2:3

137.

Symleiddiwch

Simplify

a)

4:3

b)

4:1

c)

2:3

d)

3:4

138.

Mae angen 200g o fflwr i wneud 8 crempog. Faint o fflwr sydd angen i wneud 16 crempog?

I need 200g of flour to make 8 pancakes. How much flour will I need to make 16 pancakes?

a)

200g

b)

4000g

c)

400g

d)

2000g

139.

Cysylltwch y cymarebau gyda'r ffurf symlaf.

Match the ratio's to the simplest form.

a)

2:3

1.

6:9

b)

1:2

2.

18:36

c)

2:1

3.

14:7

d)

9:2

4.

36:8

e)

19:14

5.

19:14

140.

$\sqrt[]{81}=?$

a)

9

b)

8

c)

7

d)

6

141.

Cysylltwch y rhif gyda'i sgwâr.

Match the following numbers to their squares.

a)

11

1.

121

b)

12

2.

144

c)

13

3.

169

d)

14

4.

196

e)

15

5.

225

142.

Cysylltwch y rhif gyda'i ail isradd.

Match the following numbers to their square roots.

a)

49

1.

7

b)

64

2.

8

c)

81

3.

9

d)

36

4.

6

e)

25

5.

5

143.

Beth yw $6^2$ ?

What is 6²

a)

12

b)

62

c)

36

d)

26

144.

Beth yw 2³

What is 2³

a)

8

b)

2

c)

4

d)

6

145.

Beth yw 10³

What is 10³

a)

10

b)

30

c)

100

d)

1000

146.

Beth yw trydydd isradd 125?

What is the cube root of 125?

a)

5

b)

-5

c)

25

d)

-25

147.

Beth yw trydydd isradd 64?

What is the cube root of 64?

a)

2

b)

4

c)

8

d)

16

148.

Pa rif/ rhifau sy'n luosrifau 7?

Which of these number(s) are multiples of 7?

a)

42

b)

77

c)

32

d)

23

e)

7

149.

Pa rif/ rhifau sy'n luosrifau 6?

Which of these number(s) are multiples of 6?

a)

40

b)

12

c)

30

d)

54

e)

16

150.

Pa rif isod sy'n ffactor o 33?

What number below is a factor of 33

a)

11

b)

66

c)

2

d)

6

151.

Pa rifau isod sy'n ffactorau o 24?

Which numbers below are factors of 24?

a)

8

b)

12

c)

9

d)

6

e)

1

152.

Beth yw lluosrif cyffredin lleiaf 6 a 10?

What is the lowest common multiple of 6 and 10?

a)

18

b)

60

c)

30

d)

6

153.

Beth yw ffactor cyffredin mwyaf 16 a 24?

What is the highest common factor of 16 and 24?

a)

6

b)

8

c)

10

d)

32

154.

Pa ffracsiwn o'r siâp sydd wedi'i dywyllu? Symleiddiwch eich ateb.

What fraction is shaded? Simplify fully.

a)

$\frac{1}{2}$

b)

$\frac{4}{7}$

c)

$\frac{2}{4}$

d)

$\frac{4}{10}$

155.

Pa ffracsiwn o'r siâp sydd wedi'i dywyllu?

Symleiddiwch eich ateb.

What fraction is shaded? Simplify fully.

a)

$\frac{3}{8}$

b)

$\frac{6}{16}$

c)

$\frac{1}{3}$

d)

$\frac{3}{4}$

156.

$\frac{2}{8}+\frac{4}{8}$ =

a)

6/16

b)

2/8

c)

6/8

d)

2/16

157.

$\frac{4}{6}\ -\ \frac{1}{6}=$

a)

5/6

b)

1/12

c)

3/6

d)

5/12

158.

Beth yw cyfanswm y ffracsiynau?

What is the sum of these fractions?

a)

4/9

b)

3/20

c)

17/20

d)

4/20

159.

a)

²/₅

b)

¹/₁₀

c)

²/₁₀

d)

¹/₇

160.

a)

¹/₃

b)

²/₅

c)

³/₆

d)

³/₅

161.

Cyfrifwch gilydd $\frac{1}{8}$

Find the reciprocal of $\frac{1}{8}$

a)

8

b)

1/8

162.

Cyfrifwch a symleiddiwch eich ateb.

Calculate, simplifying your answer.

a)

6/40

b)

6/10

c)

3/5

d)

12/20

163.

⁴/₉ ÷ ¹/₂

a)

⁸/₉

b)

⁵/₁₁

c)

⁶/₁₀

d)

⁴/₁₈

164.

Ysgrifennwch $3\frac{9}{10}$ fel ffracsiwn pendrwm

Convert $3\frac{9}{10}$ to an improper fraction

a)

$\frac{39}{10}$

b)

$\frac{22}{10}$

c)

$\frac{30}{10}$

d)

$\frac{29}{10}$

165.

Ysgrifennwch $\frac{13}{3}$ fel rif cymysg

Convert $\frac{13}{3}$ into a mixed number

a)

$3\frac{4}{3}$

b)

$3\frac{1}{4}$

c)

$4\frac{1}{3}$

d)

$4\frac{2}{3}$

166.

Datryswch x + 12 = 20

Solve x + 12 = 20

a)

x = 32

b)

x = -32

c)

x = 8

d)

x = -8

167.

Datryswch yr hafaliad
3x = 27

Solve the equation
3x = 27

a)

x = 24

b)

x = 81

c)

x = 9

168.

Datryswch $\frac{x}{4}=10$

Solve $\frac{x}{4}=10$

a)

x = 2.5

b)

x = 2

c)

x = 40

d)

x = 8

169.

Datryswch $x-5=10$

Solve $x-5=10$

(a)

170.

$3x+2\ =\ -25$

a)

$x\ =\ -8$

b)

$x\ =\ -9$

c)

$x\ =\ 9$

d)

$x\ =\ 24$

171.

4x + 7 = 23

a)

x = 16

b)

x = 4

c)

x = 9

d)

x = 12

172.

Datryswch yr hafaliad:

4x - 9 = 3

Solve the following equation:

4x - 9 = 3

(a)

173.

Datryswch: 8(q+4)=32

Solve: 8(q+4)=32

a)

12

b)

8

c)

20

d)

0

174.

10(f+6)=20

a)

4

b)

8

c)

-4

d)

-8

175.

5(2g-7)=25

a)

4

b)

5

c)

6

d)

2

8B adolygu llyfrennau 5, 6 a 7

Total questions: 175

Worksheet time: 9hrs 52mins

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