Question

Which number in each pair is greater?

 a.3×10-² or 4×10-³

 b.5×10-⁴+7×10-⁴ or 2×10-³

​

Answer 1

Step-by-step explanation:

a)

3×10×10=300

OR

4×10×10×10=4000

=> The second one is greater.

b) 5×10×10×10×10+7×10×10×10×10=50000+70000=120000

OR

2×10×10×10=2000

=> The first one is greater.

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