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Worksheets

Add and Subtract Decimals

Total questions: 80

Worksheet time: 5hrs 20mins

Name
Class
Date
1.
Kylee is measuring the weight of a rabbit for her science experiment. The rabbit weighs 2.569 pounds. What is the rabbit's weight rounded to nearest pound?
a)
2
b)
3
c)
2.5
d)
2.6
2.
Which of the decimals is equivalent to the value represented by the hundreds grid?
a)
0.37
b)
0.38
c)
0.83
d)
0.86
3.
4.6 + 18.024 
a)
22.624
b)
18.070
c)
1807
d)
2262.4
4.
Ali grew 2.3 inches this school year and Mary grew 2.38 inches. How much did they grow all together? 
a)
4.68 inches
b)
.08 inches
c)
2.5 inches
2.58 inches
d)
5.68 inches
5.
Last week, Mr. Henry purchased gasoline for $3.49 per gallon. Since then it has increased by $0.09 per gallon. What is the price of gasoline per gallon after the increase? 
a)
$3.58
b)
$3.4
c)
$.3141
d)
$38.78
6.
What should you ALWAYS do first when adding or subtracting decimals?
a)
Line them up!
b)
Add place holders where needed
c)
Solve
d)
Double check
7.
lia and james went to the movies the tickets are $3.00 each. Lia bought popcorn and a slushy for $8.50. Together they bought a slushy and nachos $12.00. How much money did they spend in all together?
a)
26.50
b)
2.650
c)
3.00
d)
53.65
8.
What is 3.436 rounded to the nearest hundredth?
a)
3.5
b)
4
c)
3.43
d)
3.44
9.
French Elementary has 302 boys and 267 girls enrolled.  How many more boys than girls attend French?
a)
45 students
b)
35 students
c)
569 students
d)
39 students
10.
A farmer planted ninety-two seeds on Wednesday, another seven seeds on Thursday and 129 seeds on Friday. How many seeds did he plant total?
a)
768
b)
226
c)
228
d)
123
11.
Round 45.238 to the nearest whole.
a)
45
b)
45.2
c)
45.23
d)
46
12.
Round 3.567 to the nearest tenth
a)
3.5
b)
3.57
c)
3.567
d)
3.6
13.
When you estimate, are you looking for the exact amount or a reasonable amount?
a)
exact
b)
reasonable
14.
Estimate each decimal to the nearest one.  Then add or subtract.
3.7 + 2.4 =
a)
5
b)
6
c)
7
d)
6.1
15.
Estimate each decimal to the nearest one.  Then add or subtract.
93.5 - 52.6 =
a)
41
b)
40
c)
40.9
d)
147
16.
Estimate by rounding to the indicated place value.  Round first!
7.462 + 1.809; tenths
a)
9.3
b)
9.2
c)
9.271
d)
9.27
17.
Estimate by rounding to the indicated place value.  Round first!
15.3614 - 2.0573; hundredths
a)
13.3041
b)
13.30
c)
13.31
d)
13.24
18.
Estimate by rounding to the indicated place value.  Round first!
56.4059 - 4.837; ones
a)
51.6
b)
55
c)
51
d)
52.0
19.
Estimate by rounding to the indicated place value.  Round first!
0.60871 + 1.2103; hundredths
a)
1.819
b)
2.00
c)
1.81
d)
1.82
20.

Estimate the sum.

12.63 + 9.86 + 20.30

a)

40

b)

42

c)

43

d)

44

21.

Write the number in word form:

(5 x 1000) + (3 x 10) +

(5 x 1) + (4 x 0.1) + (3 x 0.01)

a)

five hundred thirty-five and thirteen hundredths

b)

five thousand thirty-five and forthy-three hundredths

c)

five hundred thirty-five and forty-three hundredths

d)

five hundred fifty-three and thirty-four hundredths

22.
What is sixty-five and fifteen hundredths written in expanded notation?
a)
(6 x 10) + (1 x 0.1) +
(5 x 0.01)
b)
6 + 1 + 5
c)
(60 x 10) + (5 x 0.1) + (1 x 0.01)
d)
(6 x 10) + (10 x 0.1) + (15 x 0.01)
23.
Which decimal number represents seven hundred ninety-two and five hundredths
a)
792.500
b)
792.05
c)
792.005
d)
792,500
24.
487.328
a)
(1 X 400) + (8 X 10) + (1 X 7)
b)
(4 X 100) + (8 X 10) + (7 X 1) + + (3 X 0.1) + (2 X 0.01) + (8 X 0.008)
c)
(4 X 100) + (8 X 10) + (7 X 1) + + (3 X 0.1) + (2 X 0.01) + (8 X 0.008)
d)
(4 X 100) + (8 X 10) + (7 X 1) + + (3 X 0.1) + (2 X 0.01) + (8 X 0.001)
25.
This place is ten times as small as the the tenths place.
a)
hundredths place
b)
thousandths place
c)
ones place
d)
hundreds place
26.
Add the two numbers. 
a)
30
b)
37
c)
40
d)
35
27.
Add the two numbers. 
a)
54
b)
50
c)
55
d)
23
28.
Add the two numbers. 
a)
98
b)
90
c)
88
d)
97
29.
Add the two numbers 
a)
40
b)
49
c)
45
d)
43
30.
Add the two numbers. 
a)
85
b)
80
c)
87
d)
82
31.
What number has 1 ten and 9 ones?
a)
19
b)
29
c)
109
d)
55
32.
What number has 1 ten and 0 ones? 
a)
1
b)
10
c)
20
d)
100
33.
What would 789 round to?
a)
700
b)
800
34.
What would 689 round to?
a)
700
b)
600
35.
What is the expanded form of 469?
a)
400+60+9
b)
Four Hundred Sixty Nine
c)
460+9
36.
What is the expanded form of 257?
a)
257
b)
Two hundred fifty seven
c)
200+50+7
37.
What does 55 round to?
a)
50
b)
60
38.
What does 99 round to?
a)
100
b)
90
39.
What is 489 rounded to the nearest HUNDRED?
a)
400
b)
500
40.
Which digit is in the tenths place of the following number?
43.56
a)
4
b)
3
c)
5
d)
6
41.
What place is the digit 4 in the number, 3.46?
a)
ones place
b)
tenths place
c)
hundredths place
d)
tens palce
42.
Jim earns $22.50, $14.75, and $8.50 on three different days.  How much did he earn in all? 
a)
$28.75
b)
$45.25
c)
$45.75
d)
457.50
43.
On three different days at her job, Sara earned $27.50, $33, and $49.75.  She needs to earn $100 to buy a desk for her computer.  If she buys the desk, how much money will she have left over? 
a)
209
b)
9
c)
102.50
d)
10.25
44.
Ms. Hvozdik ran 12.3 mile on Saturday.  Ms. Chaney ran 4.9 miles.  How much farther did Mrs. Hvozdik run than Ms. Chaney? 
a)
7.4
b)
17.2
c)
8.6
d)
8
45.
Matty bought an apple for $0.89 and a drink for $1.95. What is her total amount of money spent? 
a)
1.06
b)
2.84
c)
90.95
d)
9.90
46.
Mr. Jeff has a piece of wire that is 32.7 meters long.  He has another wire that is 15.33 meters long.  How much longer is one wire than the other? 
a)
48.03
b)
17.43
c)
17.37
d)
173.7
47.
An average adult's leg measures 19.88 inches and the lower leg measures 16.94 inches.  How much longer is the upper leg than the lower leg? 
a)
2.94
b)
3.14
c)
36.82
d)
29.4
48.
Caleb swam a race in 21.49 seconds.  Brad swam in 21.59 seconds.  Vick swam in 20.3 seconds.  How long did the boys take to complete the race together? 
a)
633.8
b)
63.11
c)
22.78
d)
63.38
49.
Jane bought three sheet so of poster board for $1.29 each and a pack of construction paper for $3.79.  How much did Jane spend in all? 
a)
7.66
b)
76.60
c)
5.08
d)
2.50
50.
What is the sum of  33.21  and 6.96
a)
12.00
b)
4.017
c)
40.7
d)
40.17
51.

The third digit after a decimal point

a)

hundredth

b)

tenth

c)

thousandth

d)

thousand

52.

The value determined by the position of a digit in a number is called ______.

a)

number

b)

place value

c)

tenth

d)

standard form

53.

A number that uses a a decimal point to include tenth, hundredths, and/or thousandths

a)

whole number

b)

negative number

c)

decimal number

54.

the symbol used to compare two numbers when the larger number is on the left

a)

>

b)

<

c)

=

55.

the second place to the right of a decimal point

a)

hundredths

b)

tenths

c)

ones

d)

thousandths

56.

how much a digit is worth

a)

value

b)

fraction

c)

decimal

57.

the first place to the right of the decimal point

a)

thousandth

b)

hundredth

c)

tenth

d)

tens

58.

the symbol used to compare two numbers when the smaller number is on the left

a)

.

b)

=

c)

>

d)

<

59.

one of 100 equal parts

a)

thousandth

b)

hundredth

c)

tenth

d)

hundred

60.

one of 1,000 equal parts

a)

thousandth

b)

hundredth

c)

tenth

d)

hundred thousand

61.

one of 10 equal parts

a)

thousandth

b)

hundredth

c)

tenth

d)

hundred thousand

62.

7+3=3+7

a)

Associative

b)

Commutative

c)

Identity

63.

25+0=25

a)

Associative

b)

Commutative

c)

Identity

64.

4+(3+6)=(4+3)+6

a)

Associative

b)

Commutative

c)

Identity

65.

9+(1+5)=(9+1)+5

a)

Associative

b)

Commutative

c)

Identity

66.

(8+4)+2=8+(4+2)

a)

Associative

b)

Commutative

c)

Identity

67.

10+0=10

a)

Associative

b)

Commutative

c)

Identity

68.

2+0=0

a)

Associative

b)

Commutative

c)

Identity

69.

9+8=8+9

a)

Associative

b)

Commutative

c)

Identity

70.

6+4=4+6

a)

Associative

b)

Commutative

c)

Identity

71.

6+(5+4)=(6+5)+4

a)

Associative

b)

Commutative

c)

Identity

72.

This property states that the way addends are grouped does not change the sum.

a)

Associative

b)

Commutative

c)

Identity

73.

This property states that the sum of any number plus zero is that number.

a)

Associative

b)

Commutative

c)

Identity

74.

This property states that the order in which addends are added does not change the sum.

a)

Associative

b)

Commutative

c)

Identity

75.
Which expression is an example of the identity property of addition?
a)
3 + 0 = 3
b)
3 + 1 = 4 and 1 + 3 = 4
c)
3 + 4 + 2 = 9 and 4 + 2 + 3 = 9
d)
3 + 0 = 0
76.
Which expression is an example of the commutative property of addition?
a)
3 + 0 = 3
b)
3 + 1 = 4 and 1 + 3 = 4
c)
3 + 4 + 2 = 9 and 4 + 2 + 3 = 9
d)
3 + 1 = 4 and 3 + 4 = 1
77.
What number fills in the blank?
5 + (7 + 6) = (5 + ___) + 6
a)
8
b)
6
c)
5
d)
7
78.
What number fills in the blank?
24 + ____ = 24
a)
24
b)
2
c)
0
79.
Name the property:
1 + (8+3) = (1+8) + 3
a)
Associative
b)
Commutative
c)
Identity
80.
Which answer shows the commutative property of addition?
a)
6+9+5 = 9+6+5
b)
(6+9)+5 = 6+(9+5)
c)
6+0 = 6

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