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Daniel Math Academy · Grade 3 Math

Estimate Sums & Differences

Skill C.6 · Rounding & estimating · ★★☆ Medium · Quarter 1

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Round each number to the place shown, then estimate.

1. 1
   Nearest hundred: $645+591$
2. 2
   Nearest hundred: $581+276$
3. 3
   Nearest ten: $805-397$
4. 4
   Nearest ten: $274+545$
5. 5
   Nearest ten: $232+499$
6. 6
   Nearest ten: $428+194$
7. 7
   Nearest hundred: $890+116$
8. 8
   Nearest hundred: $599+976$

Daniel Math Academy · Grade 3 Math

Answer Key

C.6 Estimate Sums & Differences · ★★☆ Medium

1. 1$600+600=1,200$
2. 2$600+300=900$
3. 3$810-400=410$
4. 4$270+550=820$
5. 5$230+500=730$
6. 6$430+190=620$
7. 7$900+100=1,000$
8. 8$600+1,000=1,600$