(14+42)÷7≈8+6 (36+54)÷9≈6+9 (72+81)÷9≈15+6 (35+63)÷7≈8+7 (64+6)÷7≈70+70 (90+30)÷6≈50+40 (56+14)÷7≈70+70 (60+60)÷9≈90+30 (100+20)÷7≈80+40
(14+42)÷7≈8+6
(36+54)÷9≈6+9
(72+81)÷9≈15+6
(35+63)÷7≈8+7
(64+6)÷7≈70+70
(90+30)÷6≈50+40
(56+14)÷7≈70+70
(60+60)÷9≈90+30
(100+20)÷7≈80+40