Answer:
(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:
<u>(a) 8.3 x 4.9 </u>
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
<u>(b) 12.1 x 2.95 </u>
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
<u>(c) 60.94 ÷ 5.7 </u>
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
<u>(d) 32.79 ÷ 3.1 </u>
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
