Subtract the following by estimation:
a) 63 -32
b) 97-33
c) 48 – 21
d) 55 - 28
Answers
Answered by
1
Answer:
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Answered by
1
Answer:
a,30
b.70
c,30
d.30
Step-by-step explanation:
63=60,32=30
so60–30=30
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