Add
Subtract
Word Problem
Mental Math
Challenge
100

What is 245 + 153?

398

100

What is 425 − 112?

313

100

Mia has 25 stickers. She gets 18 more. How many stickers does she have now?

43 stickers

100

What is 50 + 25?

75

100

Find the missing number: 45 + ___ = 100

55

200

What is 678 + 245?

923

200

What is 843 − 267?

576

200

A library had 350 books. 125 were checked out. How many books remain?

225 books

200

What is 100 − 45?

55

200

Find the missing number: ___ − 125 = 300

425

300

What is 1,234 + 567?

1,801

300

What is 1,500 − 786?

714

300

A school collected 1,250 cans. Then they collected 475 more. How many cans do they have now?

1,725 cans

300

What is 300 + 450?

750

300

Find the missing number: 2,000 + ___ = 2,875

875

400

What is 3,456 + 2,789?

6,245

400

What is 4,321 − 1,876?

2,445

400

There were 2,000 people at a game. 675 left early. How many stayed until the end?

1,325 people

400

What is 1,000 − 375?

625

400

Find the missing number: 5,000 − ___ = 2,345

2,655

500

What is 5,678 + 4,987?

10,665

500

What is 8,000 − 3,457?

4,543

500

A store sold 2,345 toys in June and 1,876 in July. How many toys were sold altogether?

4,221 toys

500

What is 999 + 999?

1,998

500

I am thinking of a number. Add 2,345 and subtract 1,234. The result is 5,111. What was my number?

4,000