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1. 1(2 + 3) = 1 x 2 + 1 x 3 = 5 2. (4 x 5) x 6 = 4 x (5 x 6) 20 x 6 = 4 x 30 120 = 120 Explanation: even when the groupings changed, the answer remained the same. 3. 7 + 8 = 15 8 + 7 = 15 Explanation: even when the order changed, the sum is still the same. 4. -9(10) = -90 5. 11 + (-11) = 0
Answers & Comments
Answer:
2+3
4×(5×6)
8+7
-
11+(-11)=0
Step-by-step explanation:
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2. (4 x 5) x 6 = 4 x (5 x 6)
20 x 6 = 4 x 30
120 = 120
Explanation: even when the groupings changed, the answer remained the same.
3. 7 + 8 = 15
8 + 7 = 15
Explanation: even when the order changed, the sum is still the same.
4. -9(10) = -90
5. 11 + (-11) = 0