Question

Do the following calculations without a calculator
3.1 28 - (12 - 9)
3.2 2 x (8 5) + 3
33 +9 1
26
3. (
48) -2 3.5 (9 - 20) - (-20 - 10) 3.6 21 (-8 + 5) - 2

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Answer 1

Step-by-step explanation:

31.28 - (-12-9)

31.28 + 21

51.28

i hope it helps you