Sagot :
1. 50 x (18 ÷ 9) = ?
= 50 x (18 ÷ 9)
= 50 x (2)
50 x (18 ÷ 9) = 100
2. (33 + 7) x 12 ÷ 4 = ?
= (33 + 7) x 12 ÷ 4
= (40) x 12 ÷ 4
= (40 x 12) ÷ 4
= (480) ÷ 4
(33 + 7) x 12 ÷ 4 = 120
3. 96 – (10 + 2 x 3) = ?
= 96 – (10 + 2 x 3)
= 96 – (10 + (2 x 3))
= 96 – (10 + 6)
= 96 – (16)
96 – (10 + 2 x 3) = 80
4. 24 + 18 – 16 ÷ 4 = ?
= 24 + 18 – 16 ÷ 4
= (24 + 18) – (16 ÷ 4)
= (42) – (4)
24 + 18 – 16 ÷ 4 = 38
5. 54 + 7 x (9 – 6) = ?
= 54 + 7 x (9 – 6)
= 54 + 7 x (3)
= 54 + (7 x 3)
= 54 + (21)
54 + 7 x (9 – 6) = 75