Me!

for exercises 2-5, what is the best estimate for each product or quotient? use compatible numbers.

8.3 x 4.9 =

12.1 x 2.95 =

60.94 ÷ 5.7 =

32.79 ÷ 3.1 =

(a) 8.3 x 4.9  = 40

(b) 12.1 x 2.95   = 36

(c) 60.94 ÷ 5.7  = 10

(d) 32.79 ÷ 3.1  = 11

Step-by-step explanation:

Here, the given expressions are:

(a) 8.3 x 4.9

Now, here 8.3 can be  approximated as 8

4.9 can be approximated as  5.0

So,  8.3 x 4.9  ≈ 8 x 5  = 40

Hence, the suitable estimated product for   8.3 x 4.9  = 40

(b) 12.1 x 2.95

Now, here 12.1 can be  approximated as 12.

2.95 can be approximated as  3.0

So,  12.1 x 2.95   ≈ 12 x 3   = 36

Hence, the suitable estimated product for   12.1 x 2.95   = 36

(c) 60.94 ÷ 5.7  

Now, here 60.94 can be  approximated as 61.

5.7 can be approximated as  6

So, 60.94 ÷ 5.7   ≈ 61  ÷   6   = 10 . 16

Hence, the suitable estimated quotient for  60.94 ÷ 5.7  = 10

(d) 32.79 ÷ 3.1

Now, here 32.79 can be  approximated as 33.

3.1 can be approximated as 3.

So, 32.79 ÷ 3.1   ≈ 33  ÷ 3   = 11

Hence, the suitable estimated quotient for   32.79 ÷ 3.1  = 11

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