NCERT Solutions for Class 4th Maths Chapter 7 Question e — Let Us Solve
Book page 112 Updated on2026-09-19
Q1.
e. Find two numbers such that their sum is 856. Find another two numbers such that their difference is 563. Make your own word problems with these numbers.
Answer
Many answers are correct. Here is one pair for each box.
856 = 400 + 456 563 = 900 − 337
Checking the sum: 400 + 456 = 856.Checking the difference: 900 − 337 = 563.
Sample word problems:
A village planted 400 saplings last year and 456 saplings this year. How many saplings in all? 856 saplings.
A library has 900 books. Children borrowed 337 of them. How many books are left on the shelves? 563 books.
Sum is 856
Difference is 563
400 + 456
900 − 337
800 + 56
763 − 200
500 + 356
600 − 37
Why it happens: Pick any number smaller than 856 and take it away from 856 — what is left is the partner number.