Question

Exercise 6.1
Simplify the following:
1. 21 + 18 + 6
4.2 x 10-3 + 15 : 3
2. 75 - 15 + 6 + 6 x 2
5. 6 x 10 -8 + 25 + 5
3.63 - 7 + 475-
6.40 - 4 + 6-37
1
5
3
1 1
7. 5- + 3
8.
1
1
4
1 14
8. 1
2
8.
4
4.
10. 0.01 + 2 x 1.02 + 0.2-0.5 11. 18 -7 + 7 + 5 x
1
x1-9. 15-35-5402
2
1
1
12. 13 -
3
2
1 3
-2 :1
3
4
+05x
1
13. 3.5+ 0.7 x 0.1-0.05
1 1
14. 1- +
2
x 10
2
1​

Answer 1

Answer:

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