solve the following by regrouping the nunbers. a) 512×99
b) 430×101
Answers
Answered by
1
Answer:
512×99=50688
430×101=43430
Answered by
1
Step-by-step explanation:
a) 512×99
(500 + 12) (100 - 1)
50000 - 500 + 1200 - 12
51200 - 512
= 50688
b) 430×101
(400 + 30) (100 + 1)
40000 + 400 + 3000 + 30
= 43430
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