Question

1. Give the approximate value by estimation. (a) 108✖49= ___________ (b) 32✖58=___________. 2. Multiply in one go: 7509✖400. 3. Add: 7959+41=_________. 4. Multiply:435✖2000=_________.

Answer 1

Answer:

4 2 → 4 0

× 5 7 → × 6 0

2 4 0 0

Thus estimated product = 2400

Answer 2

Step-by-step explanation:

a) 108×49= 5292 b) 32×58= 1856 2) 7509× 400 = 3003600 3) 7959+ 41= 8000 4) 435×2000= 870000