3-Digit by 2-Digit
Estimate 42 X 21
Hint: Round each number to the nearest tens place before multiplying
40 X 20 = 800
Estimate 56 x 10
Hint: Round each number to the nearest tens place before multiplying
60 x 10 = 600
Estimate 38 X 72
Hint: Round each number to the nearest tens place before multiplying
40 X 70 = 2800
8 X 6
48
Estimate 35 X 35
Hint: Round each number to the nearest tens place before multiplying
40 X 40 = 1600
9x12
21 x ___ = 210,000
10,000
Estimate 63 X 32
Hint: Round each number to the nearest tens place before multiplying
60 X 30 = 1800
12x11
132
40 X ____ = 400,000
10,000