Question

6. Saritha can read 62 pages of a book in one day. How many pages can she read in 27 days? Estimate the number of pages and days to nearest tens.

7. 975 toffees are to be distributed among 23 children. Estimate the numbers of toffees that each child will get in nearest tens.

Answer 1

6. 1800

7. 49

Explanation:

estimation is to round to easy numbers first and then multiply or divide, which can then be done easily in our heads.

so, for 6. I rounded to 60 pages per day and 30 total days (the nearest tens). one factor of the multiplication I rounded a little bit down, the other one a little bit up. therefore the total result should still be near that.

for 7 I did a similar thing. I rounded 975 to 980 and 23 to 20. just now we need to divide.

980 / 20 = 98/2 = 49