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MATHS 1 Marks Question

Fractions and Decimals · Gujarat Board (GSEB) STD 7 (GSEB - English Medium). 145 questions.

Questions · Page 2 of 3

1 Marks Question

Question 511 Mark
Find:
$98.53 \div100$
Answer
We have,
$
\begin{aligned}
98.53+100 & =\frac{9853}{100} \times \frac{1}{100}=\frac{9853}{10000} \\
& =0.9853
\end{aligned}
$
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Question 521 Mark
Find:
$23.6 \div100$
Answer
We have,
$23.6 \div 100=\frac{236}{10} \times \frac{1}{100}=\frac{236}{1000}=0.236$
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Question 531 Mark
Find:
$432.6 \div 100$
Answer
We have, $432.6 \div100=\frac{4326}{10} \times \frac{1}{100}=\frac{4326}{1000}$
$
=4.326
$
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Question 541 Mark
Find:
$0.78 \div100$
Answer
We have,
$0.78 \div 100=\frac{78}{100} \times \frac{1}{100}=\frac{78}{10000}=0.0078$
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Question 571 Mark
Find :
$3.97 \div10$
Answer
We have,
$3.97 \div10=\frac{397}{100} \times \frac{1}{10}=\frac{397}{1000}=0.397$
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Question 581 Mark
Find :
$0.56 \div10$
Answer
We have,
$0.56 \div10=\frac{56}{100} \times \frac{1}{10}=\frac{56}{1000}=0.056$
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Question 591 Mark
Find :
$272.23 \div10$
Answer
We have,
$272.23 \div10=\frac{27223}{100} \times \frac{1}{10}=\frac{27223}{1000}=27.223$
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Question 601 Mark
Find :
$33.1 \div10$
Answer
We have, $33.1 \div10=\frac{331}{10} \times \frac{1}{10}=\frac{331}{100}=3.31$
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Question 621 Mark
Find :
$52.5 \div 10$
Answer
We have, $52.5 \div10=\frac{525}{10} \times \frac{1}{10}=\frac{525}{100}=5.25$
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Question 981 Mark
Find
$3 \frac{1}{5} \div1 \frac{2}{3}$
Answer
We have,
$
\begin{aligned}
3 \frac{1}{5} \div1 \frac{2}{3} & =\left(\frac{3 \times 5+1}{5}\right) \div\left(\frac{1 \times 3+2}{3}\right) \\
& =\left(\frac{15+1}{5}\right) \div\left(\frac{3+2}{3}\right) \\
& =\frac{16}{5} \div\frac{5}{3}=\frac{16}{5} \times \frac{3}{5}=\frac{16 \times 3}{5 \times 5}=\frac{48}{25}
\end{aligned}
$
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Question 991 Mark
Find
$\frac{2}{5} \div1 \frac{1}{2}$
Answer
We have,
$
\text {
} \begin{aligned}
\frac{2}{5} \div1 \frac{1}{2} & =\frac{2}{5} \div\left(\frac{1 \times 2+1}{2}\right)=\frac{2}{5} \div\left(\frac{2+1}{2}\right) \\
& =\frac{2}{5} \div\frac{3}{2}=\frac{2}{5} \times \frac{2}{3}=\frac{2 \times 2}{5 \times 3}=\frac{4}{15}
\end{aligned}
$
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Question 1001 Mark
Find
$3 \frac{1}{2} \div\frac{8}{3}$
Answer
We have, $3 \frac{1}{2} \div\frac{8}{3}=\left(\frac{3 \times 2+1}{2}\right) \div\frac{8}{3}=\left(\frac{6+1}{2}\right) \times \frac{3}{8}$
$
=\frac{7}{2} \times \frac{3}{8}=\frac{7 \times 3}{2 \times 8}=\frac{21}{16}
$
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1 Marks Question - Page 2 - MATHS STD 7 Questions - Vidyadip