Question

estimate the product and verify by actual calculation. a) 38 × 7
b) 45 × 67
c) 225 × 8
d) 62 × 78
e) 26 × 725
f) 602 × 145

Answer 1

A ans 266 and if estimated ans is 270
B and is 2880 and if estimated ans is 3000
C ans 2040 and if estimated ans is 2000
D ans is 4836 and if estimated ans is 4840
E ans is 18850 and if estimated ans is 18900
F ans is 87290 and if estimated ans is 87300