Make up as many expressions with numbers (no variables) as you can from three numbers 5, 7 and 8. Every number should be used not more than once. Use only addition, subtraction and multiplication

Solution:

Some of the expressions formed by 5, 7 and 8 are as follows:

(a) 5 × (8 - 7)

(b) 5 × (8 + 7)

(c) (5 + 8) × 7

(d) (8 - 5) × 7

(e) (7 + 5) × 8

(f) (7 - 5) × 8 

Therefore, 5 × (8 - 7), 5 × (8 + 7), (5 + 8) × 7, (8 - 5) × 7, (7 + 5) × 8, and (7 - 5) × 8 are the some of the expressions formed by 5, 7 and 8.

NCERT Solutions for Class 6 Maths Chapter 11 Exercise 11.3 Question 1

Make up as many expressions with numbers (no variables) as you can from three numbers 5, 7 and 8. Every number should be used not more than once. Use only addition, subtraction and multiplication

Summary:

Some of the expressions that can be made from the numbers 5, 7 and 8 are 5 × (8 - 7), 5 × (8 + 7), (5 + 8) × 7, (8 - 5) × 7, (7 + 5) × 8, and (7 - 5) × 8.

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