Question

find rhe following using appropriate properties; i) 20×(70-2) b)20×(70+2)​

Answer 1

Step-by-step explanation:

(a)

$= > 20 \times 70 - 20 \times 2 \\ = > 1400 - 40 \\ = > 1360$

(b)

$= > 20 \times 70 + 20 \times 2 \\ = > 1400 + 40 \\ = > 1440$

Answer 2

Hey meerasbabu!

Answer:

a) 100

b) 1440

Step-by-step explanation:

a) 20 × (70 - 2)

• Multiply 20 by 70 and 20 by 2 to get 140 and - 40.

140 - 40

• Subtract them.

100 Ans

b) 20 × (70 + 2)

• Add 70 and 2 to get 72.

20 × 72

• Multiply them to get 1440

1440 Ans