Estimation Flashcards

1
Q

42 x 57

  1. 8
A

= 40 x 60 = 2400 = 1200
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2 2

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2
Q

98

A

= 60 x 20 = 1200 = 12
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100 100

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3
Q

92 x 2.8

  1. 79
A

= 90 x 3 = 270 = 90
———- —–
3 3

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