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5th Grade - Aproximation and Estimation

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

Estimate the answer to:


906 + 397

a)

1300

b)

1200

c)

1310

d)

1303

2.

Estimate the answer to:


578 + 720

a)

1300

b)

1200

c)

1290

d)

1298

3.
Amy had 13 jelly beans in her left hand and 28 in her right hand. Estimate how many jelly beans Amy had in all.
a)
45
b)
40
c)
50
d)
30
4.
Bobby has 44 toy cars and trucks. He also has 62 ninja turtles and soldiers. Estimate how many toy cars, trucks, ninja turtles and soldiers Bobby has.
a)
86
b)
10
c)
100
5.

To estimate means to find something close to the correct answer.

a)

True

b)

False

6.

Round-off 724 to the nearest hundreds

a)

800

b)

35

c)

756

d)

700

7.
a)

units

b)

hundredth

c)

tenth

d)

thousandth

8.

5.994  5.99 to the nearest ......5.994\ \cong\ 5.99\ to\ the\ nearest\ ......   

a)

units

b)

tenth

c)

hundredth

d)

thousandth

9.

Round 1.82 to the nearest whole number.

a)

1

b)

1.8

c)

2

d)

2.8

10.

Approximate 2.731 correct to 1 decimal place.

a)

3

b)

2.7

c)

2.73

d)

2.731

11.
There are 82 students and 4 teachers. If the students are split into class as evenly as possible, about how many students are in a class?
a)
20
b)
25
c)
30
d)
86
12.

Which is the best estimate of the total number of books they read?

a)

220 books

b)

180 books

c)

200 books

d)

160 books

13.

About how many more tickets were sold on Friday night than Saturday night?

a)

100

b)

400

c)

200

d)

300

14.

About how much money should Jane bring to the movies if her ticket costs £5.95, popcorn costs £3.85 and a drink costs £1.25?

a)

£11.05

b)

£20

c)

£11

d)

£10

15.
Each ticket to a concert cost $32. What is the closest to the total cost of 409 tickets?
a)
12,000
b)
1,200
c)
440
d)
15,000