Different Forms
Rounding
Estimate Answers
Addition Patterns
Decomposing
100

Write 2,318 in expanded form.

2,000+300+10+8

100

Round 127 to the nearest ten.

130

100

Estimate the answer to: 394+213 using the nearest hundred.

600

100

odd+odd = _______

even

100

37+62

*Show your work

99

200

Write one thousand, one hundred three in standard form.

1,103

200

Round 1,345 to the nearest hundred.

1,300

200

Estimate the answer to: 157+121 using the nearest ten.

280

200

218+325=325+____

218

200

367+145

*Show your work

512

300

Write 3,000+40+7 in standard form.

3,047

300

Round 896 to the nearest ten.

900

300

Estimate the answer to: 799-511 using the nearest hundred.

300

300

Will the answer be even or odd?

367+432+985

even

300

495-122

*Show your work

373

400

Write 7,314 in word form.

Seven thousand, three hundred fourteen.

400

Round 6,273 to the nearest ten.

6,270

400

Estimate the answer to: 864-437 using the nearest ten.

420

400

27+53+40

120

400

353-184

*Show your work

169

500

Write 5,000+300+20+1 in word form.

Five thousand, three hundred twenty-one.

500

Round 3,057 to the nearest hundred.

3,100

500

Estimate the answer to: 473+218.

690 or 700

500

372+264+228

864

500

638-380

*Show your work

258