Rounding/ Estimation
Round the number 86 by tens.
90
Isabella has 14 books. Erin has 24 books. How many more books does Erin have than Isabella?
10 books
What is the missing number?
2, 4, _? , 8, 10
6
69 - 24 =
25
10 x 10 =
100
What place is the 8 in?
4,892
Hundreds Place
243 Rounded to the nearest hundred
200
The third grade has 49 students. Fourth grade has 35 students. How many students do they have in all?
84 students
What is the missing number?
6, 9, 12, _? , 18
15
312 + 85 =
397
45 divided by 5
9
Write this number in expanded form:
421
400 + 20 + 1
Round the number 927 to the nearest 100
900
Caleb's sister is 6 years old. Caleb is 3 times as old as his sister. How old is Caleb?
18 years old
What is the missing number?
12, _? , 24, 30, 36
18
438 - 12 =
426
7 times 3
21
Write this number in standard form:
2,000 + 400 + 70 + 3
2,473
699 to the nearest 100
700
Elenore bought 7 books. Each book costs $4. How much did she spend altogether?
$28
What's the missing number?
8, 12, 16, 20, _?
24
145 + 576 =
721
32 divided by 4
8
What is the value of the 7 in 1,271
70
4,109 to the nearest thousand
4,000
Dylan and his friends had 39 blueberries. They shared them equally among the 3 friends. How many blueberries did each friend get?
13 blueberries
What's the missing number?
25, 30, 35, _? , 45
40
537 - 264 =
273
4 x 9 =
36
Write this number in standard form:
3,000 + 800 + 2
3,802