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Worksheets

Datrys Hafaliadau Cydamserol

Total questions: 25

Worksheet time: 36mins

Name
Class
Date
1.

5a+3b=415a+3b=41

3a+2b=263a+2b=26

a=a= ​​ (a)   , b=b= ​ ​ ​ (b)  

Choose from the below words
4
7
2
3
5
6
8
9
10
11
2.

5x+5y=655x+5y=65

16x10y=2616x-10y=26

x=x= ​ ​​ (a)   ​​, y=y= ​ ​ ​ (b)  

Choose from the below words
6
7
3
4
8
10
11
2
5
9
3.

2x+7y=762x+7y=76

3x+4y=623x+4y=62

x=x= ​ ​​ ​ (a)   ​​, y=y= ​ ​ ​ ​ (b)  

Choose from the below words
10
8
3
4
11
2
5
9
7
6
4.

7x+2y=647x+2y=64

8x+4y=808x+4y=80

x=x= ​ ​​ ​ ​ ​ (a)   ​, y=y= ​ ​ ​ ​ (b)  

Choose from the below words
8
4
3
11
2
5
9
7
6
10
5.

5n+9p=945n+9p=94

x+2y=20x+2y=20

x=x= ​ (a)   , y=y= ​ (b)  

Choose from the below words
8
6
4
2
1
3
5
7
9
11
6.

Uchder bloc coch = ​ (a)  

Uchder bloc glas = ​ (b)  

Choose from the below words
9 cm
2 cm
3 cm
10 cm
4 cm
5 cm
6 cm
7 cm
8 cm
1 cm
7.

O wybod bod 7x+y=477x+y=47 a 5x4y=105x-4y=10 , canfodwch werth xx ac yy

x=x= ​ (a)  

y=y= ​ (b)  

Choose from the below words
6
5
3
4
7
8
9
10
11
2
8.

7x+y=437x+y=43

5x+3y=495x+3y=49

x=x= ​ ​ (a)   , y=y= ​ ​ (b)  

Choose from the below words
5
8
6
7
4
9
10
3
11
2
9.

5a+2b=235a+2b=23

7a+7b=707a+7b=70

a=a= ​ (a)   , b=b= ​ (b)  

Choose from the below words
1
9
2
3
4
5
6
7
8
10
10.

Roedd 3 byrgyr a 4 pitsa yn costio £39

Roedd 5 byrgyr ac un pitsa yn costio £31

Beth oedd costau'r eitemau yn unigol?

Byrgyr = ​ (a)   a Pitsa = ​ (b)  

Choose from the below words
£5
£6
£4
£4.50
£5.50
£7.50
£8
£3
£3.50
£9.50
11.

12x+5y=7512x+5y=75

7x+10y=657x+10y=65

x=x= ​ (a)   ; y=y= ​ (b)  

Choose from the below words
5
3
4
6
7
8
9
10
2
1
12.

5x+6y=1125x+6y=112

7x3y=207x-3y=20

x=x= ​ ​ (a)   ; y=y= ​ (b)  

Choose from the below words
8
12
10
9
11
15
5
6
20
2
13.

5a+4b=135a+4b=13

7a2b=367a-2b=36

a)

a=13; b=2a=\frac{1}{3};\ b=-2

b)

a=3; b=12a=3;\ b=-\frac{1}{2}

c)

a=1; b=23a=1;\ b=\frac{2}{3}

d)

a=34; b=1a=\frac{3}{4};\ b=-1

14.

2x+6y=432x+6y=43

8x3y=108x-3y=10

x=x= ​ (a)   ; y=y= ​ (b)  

Choose from the below words
7/2 = 3.5
6
3/4 = 0.75
4
7
9/2 = 4.5
10
3
5/2 = 2.5
-2
15.

Pwysau tri chi a pedair cath yw 73 kg

Pwysau dau gi a saith cath yw 79 kg

Pwysau 1 ci = ​ (a)   ; Pwysau 1 gath = ​ ​ (b)  

Choose from the below words
15 kg
7 kg
12 kg
13 kg
14 kg
16 kg
9 kg
10 kg
11 kg
8 kg
16.

5α2β=315\alpha-2\beta=31

α+5β=44\alpha+5\beta=44

α=\alpha= ​ (a)   ; β=\beta= ​ (b)  

Choose from the below words
9
7
8
10
5
6
11
12
14
15
17.

7y=175x7y=17-5x

8x+6y=228x+6y=22

x=x= ​ (a)   ; y=y= ​ (b)  

Choose from the below words
2
1
0
3
-1
-2
-3
4
5
-4
18.

5A+3B=845A+3B=84

AB=4A-B=4

A=A= ​ (a)   ; B=B= ​ (b)  

Choose from the below words
12
8
10
14
6
7
9
11
13
15
19.

3x+y=243x+y=24

x2y=22x-2y=22

x=x= ​ (a)   ; y=y= ​ (b)  

Choose from the below words
10
-6
8
-4
5
3
-2
9
-8
6
20.

Mae Rob yn archebu 5 brechdan a 6 diod am £24.70

Mae Laura yn archebu 4 brechdan a 3 diod am £17.60

1 brechdan: ​ (a)   1 diod: ​ (b)  

Choose from the below words
£3.50
£1.20
£2.25
£1.50
£4.00
£3.20
£1.75
£0.80
£2.50
£2.80
21.

6x+7y=256x+7y=25

12xy=512x-y=5

a)

x=23; y=3x=\frac{2}{3};\ y=3

b)

x=13;y=12x=\frac{1}{3};y=-\frac{1}{2}

c)

x=2; y=12x=2;\ y=-\frac{1}{2}

d)

x=2, y=43x=-2,\ y=\frac{4}{3}

22.

5c2d=455c-2d=45

4c+d=234c+d=23

c=c= ​ (a)  d=d= ​ (b)  

Choose from the below words
7
-5
-6
6
4
-9
8
9
-3
2
23.

5s+8t=65s+8t=6

3s+2t=123s+2t=12

s=s= ​ (a)   a t=t= ​ (b)  

Choose from the below words
6
-3
-4
-5
-6
4
5
7
8
-2
24.

Uchder 1 bloc gwyrdd = ​ (a)  

Uchder 1 bloc pinc = ​ (b)  

Choose from the below words
15 cm
7 cm
8 cm
9 cm
10 cm
11 cm
12 cm
14 cm
16 cm
17 cm
25.

Mae pob un bricsen yr un maint.

Hyd 1 bricsen = ​ (a)  

Lled 1 bricsen = ​ (b)  

Choose from the below words
70 mm
20 mm
80 mm
15 mm
50 mm
30 mm
35 mm
75 mm
65 mm
60 mm