Question

25. Estimate the answer correct to one
significant figure. Do not use a calculator.
a) (612 x 52) + 49.2
b) (11.7 +997.1) X 9.2


c)
$\sqrt{(91 \div 10.1)}$

d)
$\pi \sqrt{5.2 ^{2} } + 18.2$

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Answer 1

Answer:

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