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Estimate the values by first rounding the numbers to the nearest ten and calculate the exact answer. a. 357+245= Estimate: Exact: b. 451+625= Estimate: Exact:
Estimate the values by first rounding the numbers to the nearest ten and calculate the exact answer.
a. 357+245=
Estimate:
Exact:
b. 451+625=
Estimate:
Exact:
c. 3,255+2,105=
Estimate:
Exact:
a. 495357=
Estimate:
Exact:
b. 868745=
Estimate:
Exact:
c. 1,858255=
Estimate:
Exact:
a. 6359=
Estimate:
Exact:
b. 3597=
Estimate:
Exact:
c. 24645=
Estimate:
Exact:
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