Mathematics, 07.02.2022 23:00 71887
Which of the following number sentences are true? In each case is explain how you could answer without any calculation to check your answers by doing the indicated calculation
a. 20 × 410 =(20 × 400) + (20 × 10)
b 20× 308= (20 × 340) - (20 × 32)
c -20 + (300 × 32) = (-20 + 300) × (-20 + 32)
Answers: 3
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Which of the following number sentences are true? In each case is explain how you could answer witho...
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