Subtraction
1,285 - 1,272 = x
x = 13
2,345 + 1,212 = n
n = 3,557
Round to the nearest thousand.
4,382 → __________
4,000
The school library has 2,345 fiction books and 1,876 nonfiction books.
How many books are in the library altogether?
4,221 books
Use metal math to solve this problem:
35,000 + 2,500 = s
s = 37,000
14,536 - 10,525 = v
v = 4,011
4,678 + 2,945 = k
k = 7,623
Round to the nearest hundred.
7,651 → __________
7,700
A nature center had 6,250 visitors last year. This year, 4,785 people visited.
How many more visitors did the nature center have last year?
1,465 visitors
Use mental math to solve this problem:
54,512 + 2,500 = h
h = 75,012
12,450
- 6,783
________
5,667
5,827 + 3,496 + 785 = w
w = 10,108
Estimate the sum by rounding each number to the nearest thousand.
3,847 + 2,251 = __________
4,000 + 2,000 = 6,000
Students collected 1,875 cans during the first week of a food drive, 2,436 cans during the second week, and 1,729 cans during the third week.
How many cans did students collect altogether?
6,040 cans
Fill in the missing number:
(20+30)+10=20+(30+____)
10
25,604
- 17,895
________
7,709
26,475 + 8,968 + 3,729 = y
y = 39,172
Estimate the sum by rounding each number to the nearest thousand.
5,624 + 3,781 + 1,294 = __________
6,000 + 4,000 + 1,000 = 11,000
A stadium can hold 25,000 people. During a game, 18,746 people attended.
How many seats were empty?
6,254 seats
A museum had 12,500 visitors during the summer. 7,846 visitors came during June and July.
How many visitors came during August?
Estimate to see if your answer is reasonable.
4,654 visitors
About 5,000 visitors
50,000
- 27,586
________
22,414
47,586 + 25,759 + 9,867 = A
A = 86,212
Estimate the difference by rounding each number to the nearest thousand.
18,472 − 9,638 = __________
18,000 − 10,000 = 8,000
A school raised $8,475 during a fall fundraiser. They raised $6,825 during a spring fundraiser. The school spent $4,350 on new playground equipment.
How much money did the school have left after buying the equipment?
$10,950
Find the missing number:
11,654
- 4,215
_4_9
7,439