Question

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The value of
(2 x 10³) (5 x 10-5)
(0.2 x 102) (0.5 × 10-2)
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Answer 1

(2 x 10³) (5 x 10-5)

10³=1000, 2×1000 =2000

5× 10-5

In order of BODMAS, multiplication come before subtraction, so 5×10=50

50-5=45

2000×45=90,000

(0.2 x 102) (0.5 × 10-2)

0.2×102=20.4,

0.5×10-2 in between multiplication and subtraction, multiplication come before subtraction, so 0.5×10=5, 5-2=3

20.4×3=61.2