a. (3 × 2) × 10
= 6 × 10
= 60
(1 × 7) × 10
= 7 × 10
= 70
(2 × 4) × 10
= 8 × 10
= 80
( 3×3 ) × 10
= 9 × 10
= 90
( 5 × 2 ) × 10
= 10 × 10
= 100
┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
b. 7 + 2 + 10
= 9 + 10
= 19
4 + 6 + 10
= 10 + 10
= 20
3 + 5 + 10
= 8 + 10
= 18
1 + 8 + 10
= 9 + 10
= 19
9 + 6 + 10
= 15 + 10
= 25
sper ca te-am ajutat, succes! ʕ •ᴥ•ʔ