10 x 2 - 8 = 6 + 20 : 4 = 10 + 5 x 5 = 6 x 2 + 10 : 2 = 18 : 2 + 5 x 2 = 12 : 2 + 8 x 3 = 5 x ( 3 + 1) = (10 + 5 ) : 3 = (18 - 6):2 + 5 = 15 + (20 : 4 ) x 2 = 24 : 3 + 8 x 2 = 24 + 3 × ( 2+ 5)= 10 × (5+3) − 15= 5 × (3 + 8) − 4 = (10+20) ÷ 5 × 3= 18 ÷ (3+3) × 4 = 24 − 6 × (2+1) = 15 × (2+1) − 8 = 12 × (3+1) + 10 = 8 × (3 + 4) − 9 = 64 ÷ 8 + 10 × 3 = 10 × 5 + 3 − 15 = 14 × 2 − 12 ÷ 4 = (8+20) ÷ 4 - 3 = |