Question

answer this

its my work sheet​

Answer 1

Answer:

1) 20 = 2 × 2 × 5

${(2)}^{2} \times 5$

2). 128 = 2 × 2 × 2 × 2 × 2 × 2 × 2

3). 72 = 2 × 2 × 2 × 3 × 3

4). 81 = 3 × 3 × 3 × 3