Round or Compare
Addition
Subtraction
Number Fun
Problem Solving
100

397,000 __ 379,000

Use the symbol <, >, or = to compare the pair of numbers.

397,000 > 379,000

100

699 + 352 = x

1051

100

352 - 187 = x

165

100

Fill in the blank.

1,572 - 199 = 1,573 - ___  

1,572 - 199 = 1,573 - 200

100

If the telephone was invented in 1876, when was it 98 years old?

1974

200

Round 588,642 to the nearest hundred.

588,600

200

652 + 776 = x

1428

200

561 - 234 = x

327

200

22,387 + _____ = 22,400 + 21,225

22,387 + 21,238 = 22,400 + 21,225

200

If the hot air balloon was invented in 1783, when was it 197 years old?

1980

300

Round 588,642 to the nearest thousand.  

589,000

300

3,892 + 4,639 = x

8,531

300

3912 - 1498 = x

2414

300

Write this number in base ten numeral form.  

500,000 + 40,000 + 3,000 + 

200 + 90 + 1

543,291

300

Mary's Aunt was born in 1968.  Mary was born in 1999.  How old was Mary's Aunt when she was born?

31

400

12,489,090 ___  12,489,900

Use the symbols <, >, or = to compare the pair of numbers.  


12,489,090 <  12,489,900

400

5,837 + 7,283 = x

13,120

400

8247 - 3987 = x

4,260

400

Write 589,642 in number name (word form).

Five hundred eighty-nine thousand, six hundred forty-two

400

If the battery was invented in 1799, how old was it in 1998?

199 years old.

500

Round 588,642 to the nearest ten thousand.

590,000

500

76,529 + 25,776 = x

102,305

500

87,643 - 25,835 = x

61,808

500

Write 140,016 in expanded form

100,000 + 40,000 + 10 + 6

500

If the stethoscope was invented in 1819, how old is it today?

205 years old

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