Answer:
C. Match the expression in Column A with the corresponding solution.
=Column A=
f. 43 11. 4 + 81 ÷ 9 x 5 - 6
Solution:
4 + 81 ÷ 9 x 5 - 6
4 + 9 x 5 - 6
4 + 45 - 6
49 - 6
= 43
a. 12 12. (7 - 3) x (8 - 5)
Solution:
(7 - 3) x (8 - 5)
4 x 3
= 12
c. 15 13. 16 + 2 - 5 + 2
Solution:
16 + 2 - 5 + 2
18 - 5 + 2
13 + 2
= 15
d. 20 14. 15 x 3 ÷ 9 + 15
Solution:
15 x 3 ÷ 9 + 15
45 ÷ 9 + 15
5 + 15
= 20
b. 14 15. 2³ - (7 + 5) ÷ 4 + (15 ÷ 3) + 7 - 3
Solution:
2³ - (7 + 5) ÷ 4 + (15 ÷ 3) + 7 - 3
8 - 12 ÷ 4 + 5 + 7 - 3
8 - 3 + 5 + 7 - 3
5 + 5 + 7 - 3
10 + 7 - 3
17 - 3
= 14
=Column B=
a. 12
b. 14
c. 15
d. 20
e. 34
f. 43
Use GEMDAS to find the answer.
16. 10 x [(29 - 2) ÷ (81 + 9)] =
10 x [27 ÷ 9] =
10 x 3 = 30
17. [(6 + 32) x 5 ÷ 25] x 5 =
[38 x 5 ÷ 25] x 5
[190 ÷ 25] x 5
[190 ÷ 25] x 5
7.6 x 5 = 38
18. 24 - 6 + [23 x 32) + (8 ÷ 4)] =
24 - 6 + [(23 x 32) + (8 ÷ 4)]
24 - 6 + [736 + 2]
24 - 6 + 738
18 + 738 = 786
19. 102 - [80 x 4 +3)] =
102 - [(80 x (4 +3)]
102 - [80 x 7]
102 - 560 = -458
20. 128 x [(2 + 5) - (5 - 2)] ÷ 116 =
128 x [7 - 3] ÷ 116
128 x 4 ÷ 116
512 ÷ 116 = 4.41
