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1. use rounding or compatible numbers to estimate each product or quotient

5 x 2 3/5


a. about 10
b. about 10 3/5
c. about 12
d. about 15




2. use rounding or compatible numbers to estimate each product or quotient

25 7/8 (divided by) 2 8/9

a. about 9
b. about 10
c. about 11
d. about 12

Respuesta :

Answer:

A) option c) about 12

B)  option a) about 9      

Step-by-step explanation:

We have to carry out the following calculation and use compatible numbers to evaluate,

A)

[tex]5\times 2\displaystyle\frac{3}{5}\\\\=5\times \frac{13}{5}\\\\=13[/tex]

Hence, the answer option c) about 12.

B)

[tex]25\displaystyle\frac{7}{8}\div 2\frac{8}{9}\\\\=\frac{207}{8}\div \frac{26}{9}\\\\=\frac{207}{8}\times \frac{9}{26}\\\\= 8.95[/tex]

Hence, the right answer is option a) about 9

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