Place Value Power
What is the value of the 5 in the number 523?
500
$45 + 10 = ?
55
$88 - 10 = ?
78
Sarah has 15 apples and buys 10 more. How many does she have now?
25
What is the "Sum"?
The answer to an addition problem
Round 87 to the nearest ten.
90
$120 + 300 = ?
420
$500 - 200 = ?
300
A bus has 40 seats. 12 people are sitting down. How many empty seats are there?
28
What do we call the answer to a subtraction problem?
The difference
Write 400 + 30 + 6 in standard form
436
Find the sum of 156 and 32
188
Solve 75 - 29
46
The school library has 250 books. They buy 125 more. How many total books are there?
375
X + 10 = 50
40
Round 642 to the nearest hundred.
Solve 245 + 138.
383
What is 842 - 131?
711
Jake had $100. He spent $42 on a video game. How much money does he have left?
58
Estimate the sum of 292 + 104 by rounding to the nearest hundred.
300+100=400
What is the largest 3-digit number you can make using the digits 2, 9, and 5?
952
$499 + 251 = ?
750
400 - 125.
275
There are 150 birds in a park. 60 fly away, then 20 more arrive. How many birds are in the park now?
110
Use the Inverse Operation (opposite) to check if 50 - 20 = 30 is correct.
30+20=50