Asked by Johnny

1.Estimate 45 x 56 using front-end.

2.Estimate 45 x 56 using rounding.
Answered by Ms. Sue
1. 4 * 5

2. 50 * 50

http://www.aaamath.com/est73ax2.htm

Answered by LaNesha
Estimate 45 and 56 using front-end estimation

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