Patterns
Rounding
Estimating
Regrouping
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100

10 more than 148

What is 158? 

100

63 rounded to the nearest ten 

What is 60? 

100
Estimate 104 + 100

What is 200? 

100

The sum of 15 + 36 

What is 51?

100

A number added to another number

What is addend? 

200

100 more than 1,645

What is 1,745? 

200

68 to the nearest ten

What is 70? 

200

Estimate 64 + 78 

What is 140?

200

The sum of 84 + 28 

What is 112? 

200

The answer of two or more numbers added together

What is the sum? 

300
100 more than 31,423

What is 31,523?

300

578 to the nearest hundred

What is 600? 

300

Estimate 946 + 31

What is 980?

300

The sum of 196 + 74

What is 270? 

300

Estimate 456 + 108 (tens) 

What is 570? 

400

1,000 more than 13,459

What is 14,459? 

400

15,416 rounded to the nearest thousand? 

What is 15,000? 

400

Estimate 483 + 123 (tens) 

What is 600?

400

The sum of 534 + 278

What is 812? 

400

The sum of 323 + 497

What is 820? 

500

1,000 more than 876,302?

What is 877,302?

500

63,218 rounded to the nearest ten thousand? 

What is 60,000? 

500

Estimate 1,346 + 4,567 (hundreds) 

What is 5,800?



500

The sum of 1,304 + 7,645

What is 8,949? 

500

The sum of 6,045 + 2,589

What is 8634?