Question 11 Mark
204 ÷ 0.17 = ________.
Answer
View full question & answer→204 ÷ 0.17 = 1200
Solution:
$\frac{204}{0.17}=\frac{204\times100}{0.17\times100}$
$\frac{204\times100}{17}=12\times100=1200$
Questions
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5 questions · timed · auto-graded
Question 21 Mark
1.001 ÷ 14 = ________.
Question 31 Mark
(0.7)2 = ______.
Answer
View full question & answer→(0.7)2 = 0.49
Solution:
(0.7)2 = 0.7 × 0.7 First, we will find the product 0.7 × 0.7 Now, 7 × 7 = 49 Sum of decimal places in the given decimals = (1 + 1) = 2 So, the product must have two decimal places (0.7)2 = 0.7 × 0.7 = 0.49Question 41 Mark
0.47 × 5.3 = ________.
Answer
View full question & answer→0.47 × 5.3 = 2.491
Solution:
First, we will multiply 47 by 53
$\ \ \ \ \ \ 47\\\ \times53\\\overline{\ \ \ \ 141}\\235\times\\\overline{\ \ 2491}$
$\therefore47\times53=2491$
Sum of decimal places in the given decimals = (2 + 1) = 3
$\therefore0.47\times5.3=2.491$
Solution:
First, we will multiply 47 by 53
$\ \ \ \ \ \ 47\\\ \times53\\\overline{\ \ \ \ 141}\\235\times\\\overline{\ \ 2491}$
$\therefore47\times53=2491$
Sum of decimal places in the given decimals = (2 + 1) = 3
$\therefore0.47\times5.3=2.491$
Question 51 Mark
(0.05)3 = ________.
Answer
View full question & answer→(0.05)3 = 0.000125
Solution:
First, we will find the product 0.05 × 0.05 × 0.05 Now, 5 × 5 × 5 = 125 Sum of decimal places in the given decimals = (2 + 2 + 2) = 6 So, the product must have six decimal places $\therefore$ (0.05)3 = 0.05 × 0.05 × 0.05 = 0.000125