Place Value
Rounding & Estimation
Mental Math
Addition & Subtraction
Word Problems
100

What is the value of the digit 7 in 47,325?

7,000

100

Round 4,367 to the nearest 10.

4,370

100

Calculate mentally: 450 + 250.

700

100

3,425 + 2,310 = ?

5,735

100

A library has 2,450 books and gets 375 more. How many now?

2,825 books

200

Which number is greater: 605,890 or 605,809?

605,890

200

Round 38,649 to the nearest 100.

38,600

200

Calculate mentally: 1,000 − 375.

625

200

8,250 − 3,475 = ?

4,775

200

A school has 6,500 cans and donates 2,875. How many remain? ?

3,625 cans

300

What is the place value of the digit 6 in 364,218?

Ten thousands

300

Round 487,356 to the nearest 1,000.

487,000

300

Calculate mentally: 2,750 + 1,250.

4,000

300

28,675 + 16,849 = ?

45,524

300

Goal: $10,000. Raised: $6,725. How much more is needed?

$3,275

400

Write 508,374 in expanded form.

500,000 + 8,000 + 300 + 70 + 4

400

Estimate 3,456 + 2,391 by rounding both numbers to the nearest hundred.

3,500 + 2,400 = 5,900

400

Calculate mentally: 6,500 − 2,750.

3,750

400

82,340 − 27,895 = ?

54,445

400

A store had 12,500 notebooks and sold 3,875 + 2,650. How many remain?

5,975 notebooks

500

Make the six-digit number: 4 hundred-thousands, 7 thousands, 3 hundreds, and 9 ones.

407,309

500

Estimate 83,450 − 27,895 by rounding to the nearest thousand.

83,000 − 28,000 = 55,000

500

Without using a calculator, find:
4,800 + 2,350 − 1,150

6,000

500

75,000 − 18,750 + 12,625 − 6,750

62,125

500

A library had 25,000 books, removed 2,875, added 1,650, then donated 925. How many remain?

22,850 books