Question

(8)
find out the estimated product and actual product by
rounding off to their nearest ten.
(a) 23x58
(b) 46x91​

Answer 1

(a) 23 × 58

= 20 × 60

= 2× 10 × 6 × 10

= 12 × 100

= 1200

(b) 46 × 91

= 50 × 90

= 5 × 10 × 9 × 10

= 45 × 100

= 4500

Hope it helps