Estimate the product.
77 x 21
II
77 x 21 is about
70 x 35
80 x 20
80 x 40<...
![subject](/tpl/images/cats/mat.png)
Mathematics, 29.07.2020 04:01 jladinosolarsee
Estimate the product.
77 x 21
II
77 x 21 is about
70 x 35
80 x 20
80 x 40
60 x 20
![ansver](/tpl/images/cats/User.png)
Answers: 1
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