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7 October, 16:40

2). Estimate the product. Round each factor to the nearest ten. then multiply.

32 X 79 =

95 X 24 =

71 X 48 =

89 X 50 =

21 X 16 =

99 X 91 =

+3
Answers (1)
  1. 7 October, 18:11
    0
    So for the first one, you'd round round 32 down to 30, and 79 up to 80. The new equation is 30*80. 3*8=24, then add the zeroes to make 2400. For the second one, round 95 up to 100, and 24 down to 20. 20*100=2000. The third 71 to 70, 48 to 50. 70*50=3500. The fourth, 89 to 90, 50 stays the same, 90*50=4500. Fifth, 21 to 20, 16 to 20, 20*20=400. Sixth 99 to 100, 91 to 90, 100*90=9000.

    1: 2400

    2:2000

    3:3500

    4: 4500

    5: 400

    6: 9000
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