What's the value?
Mental Math
Money Matters
Add or subtract
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100

It's the 3 in 283.

3

100

What is 60 + 10?

70

100
How much is 5 dimes?

50 cents

100

How many in all?

Add

100

9-4

5

200

It's the 5 in 457.

50

200

What is 340 + 20?

360

200

How much is one dime and 3 pennies?

13 cents

200

What is the total?

Add

200

10-8

2

300

It's the 7 in 716.

700

300

What is 139 + 40?

179.

300

How much is 3 quarters?

75 cents

300

Find the difference.

Subtract.

300

16-9

7

400

It's the zero in 504.

Zero tens.

400

What is 386 + 400?

786

400

How much is 2 quarters and one nickel?

55 cents

400

How much older is the boy?

Subtract.
400

15-7

8

500

It's the 1 in 415.

10.

500

What is 190 + 30?

220

500

How much is 4 dimes, 3 nickels, and 2 pennies?

57 cents

500

How many are left?

Subtract

500

18-9

9

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