Answer: kindly check explanation
Step-by-step explanation:
Given the following statements :
A.) To find 49 times 73. I multiply 73 times 50 and take off one group of 73
To obtain the product of (49 and 73)
(73 * 50) - 73
3650 - 73
= 3577
B.) To find 15 times 16, I double 15 and halve 16 and then multiply
Double 15 = (15 * 2) = 30
Halve 16 = (16 / 2) = 8 ;
Then multiply:
(30 * 8) = 240
Similarly ;
(15 × 2) × (16 / 2) = 240