Add one pair of parenthesis or square brackets to the left side of each equation to make a true statement.
a.) 3.5x4.1-3.5-2.8=-0.7
b.) 2.5 + (-4.1) + (-2.3) x (-1.1) = 4.29
c.) -5.5-(-6.5) ÷ 2.4 + (-1.1) = -0.5
a.) 3.5x4.1-3.5-2.8=-0.7
Answer: 3.5x(4.1-3.5)-2.8=-0.7
(3.5x 0.6)-2.8=-0.7
2.1-2.8=-0.7
-0.7=-0.7
b.) 2.5 + (-4.1) + (-2.3) x (-1.1) = 4.29
Answer: [2.5 + (-4.1) + (-2.3)] x (-1.1) = 4.29
[2.5-4.1-2.3] x (-1.1) = 4.29
[-1.6-2.3] x (-1.1) = 4.29
[-3.9] x (-1.1) = 4.29
-3.9x(-1.1)=4.29
4.29=4.29
c.) -5.5-(-6.5) ÷ 2.4 + (-1.1) = -0.5
Answer: -5.5-(-6.5) ÷ [2.4 + (-1.1)] = -0.5
-5.5+6.5 ÷ [2.4-1.1] = -0.5
-5.5+6.5 ÷ [1.3] = -0.5
-5.5+(6.5 ÷ 1.3)= -0.5
-5.5+5=-0.5
-0.5=-0.5
Great Job on your post Jan. Your work is really neat and well detailed. It shows how each step goes and your colors also helped.
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