Questions · Page 2 of 3

1 Marks Question

Question 511 Mark
Find: $211.9 \times 1.13$
Answer
$211.9 × 1.13$ $\frac{2119}{10}\times\frac{113}{100}$ $=\frac{239447}{1000}$ $=239.447$
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Question 521 Mark
Divide: $0.768$ by $1.6$
Answer
$\frac{0.768}{1.6}$ $=\frac{768\times10}{16\times1000}$ $=\frac{7680}{16000}$ $=0.48$
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Question 531 Mark
Add the following: $41.8, 39.24, 5.01$ and $62.6$
Answer
$41.8 + 39.24 + 5.01 + 62.6 = 81.04 + 67.61 = 148.65$
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Question 561 Mark
Find the product: $0.45 \times 10$
Answer
On dividing by $100,$
we get, $\frac{45}{100}\times10$
$=\frac{45}{10}$
$=4.5$
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Question 591 Mark
Find the product:
$0.745 \times 12$
Answer
On dividing the decimal by $1000$ and multiplying the numbers, we get,
$\frac{745}{1000}\times12$
$=\frac{8940}{1000}$
$=8.94$
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Question 601 Mark
Divide:
$403.80$ by $30$
Answer
$\frac{403.8}{30}$
$=\frac{4038}{30\times10}$
$=\frac{4038}{300}$
$=13.46$
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Question 641 Mark
Write the following as decimals: $\frac{8}{100}$
Answer
$\frac{8}{100}$ Mark the decimal point two place from right to left, $=\frac{8}{100}$ $=0.08$
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Question 651 Mark
Find: $10.05 \times 1.05$
Answer
$10.05 × 1.05$ $\frac{1005}{100}\times\frac{105}{100}$ $=\frac{105525}{10000}$ $=10.5525$
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1 Marks Question - Page 2 - Maths STD 7 Questions - Vidyadip