Question

Exercise 3.5 1. Estimate the following products by rounding off each number to the nearest ten. a. 78 x 63​

Answer 1

Answer:

round off to nearest 10

78× 63

78 becomes 80 and 63 becomes 60 then we have to multiply the numbers

80

×60

4800

So the answer is 4800

Answer 2

Round off of 78 to nearest 10 = 80

Round off of 63 to nearest 10 = 60

Product of 80 and 60 = 4800 ans