Estimate Sums & Differences

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: $308-204$
2. 2
   Nearest ten: $822-794$
3. 3
   Nearest ten: $423-247$
4. 4
   Nearest ten: $854+133$
5. 5
   Nearest hundred: $622+735$
6. 6
   Nearest ten: $834-381$
7. 7
   Nearest hundred: $609-129$
8. 8
   Nearest hundred: $924-675$

Daniel Math Academy · Grade 3 Math

Answer Key

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

1. 1$300-200=100$
2. 2$820-790=30$
3. 3$420-250=170$
4. 4$850+130=980$
5. 5$600+700=1,300$
6. 6$830-380=450$
7. 7$600-100=500$
8. 8$900-700=200$