Question

Shin used a doubling and halving strategy to solve 25 times 68. Fill in the blanks in the arrays and the equations to represent her work

Answer 1

Answer:

$25 * 68 = 1700$

Step-by-step explanation:

Given

$25 * 68$

Required

Fill the array using doubling and halving

Question is incomplete, as the array is not given.

However, the solution is as follows:

$25 * 68$

Double 25 and half 68

$25 * 68 = 50 * 34$

Double 50 and half 34

$25 * 68 = 100 * 17$

The above is now easy to solve

$25 * 68 = 1700$