Questions · Page 3 of 3

1 Marks Question

Question 1021 Mark
Write the following as decimals: $20+9+\frac{4}{100}$
Answer
We have $2$ tens, $9$ ones and $4$ hundredths. Therefore, the decimal is $29.04$
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Question 1031 Mark
Which of the following are like decimals: $8.80, 17.08, 8.94, 0.27$
Answer
Like decimals, since these have the same number of digits after the decimal point.
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Question 1041 Mark
Fill in the blanks: $2m, 5\ cm =$ _____ $m.$
Answer
$1\text{m}=100\text{cm}$
$\Rightarrow1\text{cm}=\frac{1}{100}\text{m}$
$2\text{m},5\text{cm}=2\text{m}+\frac{5}{100}\text{m}$
$=2\text{m}+0.05\text{m}$
$=2.05\text{m}$
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Question 1071 Mark
Write of the following as decimals:
$\frac{208}{100}$
Answer
$\frac{208}{100}=\frac{200}{100}+\frac{8}{100}=2+\frac{8}{100}$
We have $2$ and $8$ hundredths.
Therefore, the decimal is $2.08$
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Question 1081 Mark
Which of the following statements are correct? $0.95, 0.306, 7.10$ are unlike decimals.
Answer
Correct, since these three decimals have different numbers of digits after the decimal point.
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Question 1091 Mark
Convert the following decimals into fractions in simplest form: $0.075$
Answer
$=\frac{075}{1000}$ $=\frac{\frac{75}{25}}{\frac{1000}{25}}$ $=\frac{3}{40}$
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Question 1101 Mark
Express the following decimals as fractions in the lowest form: $5.25$
Answer
$5.25=\frac{525}{100}=\frac{21}{4}$
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Question 1111 Mark
Find the sum in the following: $\underline{\ \ \ \ 312.8\\+ 290.02\\+ 128.457\ \ }$
Answer
$\underline{\ \ \ \ 312.800\\+ 290.020\\+ 128.457\ \ }\\=731.277$
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Question 1121 Mark
Subtract: $\underline{46.23\\37.5\ \ \ }\\\underline{\ \ \ \ \ \ \ \ \ \ }$
Answer
$\underline{\ \ \ \ 46.23\\-37.50\ }\\\underline{=8.73\ \ \ }$
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Question 1131 Mark
Write of the following as decimals: $\frac{18}{1000}$
Answer
We have eighteen thousandths. Therefore the decimal is $0.018$
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Question 1151 Mark
Subtract: $\underline{128.4\\\ \ 53.05\ }\\\underline{\ \ \ \ \ \ \ \ \ \ \ \ }$
Answer
$\underline{\ \ 128.40\\ -53.05\ }\\\underline{=75.35\ }$
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Question 1161 Mark
Fill in the blanks: 2l5ml = ______ l
Answer
2l5ml = 2.005 lSolution:
$\Rightarrow1\text{ml}=\frac{1}{1000}\text{l}$ $2\text{l}5\text{ml}=2\text{l}+\frac{5}{1000}\text{l}$ $=2\text{l}+0.005\text{l}$ $=2.005\text{l}$
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Question 1171 Mark
Fill in the blanks:
$\frac{34}{10000}=\underline{\ \ \ \ \ \ \ \ \ }$
Answer
$\frac{34}{10000}=\underline{0.0034}$
Solution:
$\frac{34}{10000}=\frac{0034}{10000}=0.0034$
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Question 1181 Mark
Express the following decimals as fractions in the lowest form: $7.125$
Answer
$7.125=\frac{7125}{1000}=\frac{57}{8}$
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Question 1191 Mark
Between which two whole numbers on the number line are the given numbers? Which one is nearer the number? $2.6$
Answer
$2.6$ is between $2$ and $3$. As $2.6$ is $6$ units from $2$ and $4$ units from $3$, it is nearer to $3.$
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Question 1201 Mark
Find the sum in the following: $25.65 + 9.005 + 3.7$
Answer
$\underline{\ \ \ \ 25.650\\+\ \ 9.005\\+\ \ 3.700\ \ }\\=38.355$
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Question 1211 Mark
Write of the following as decimals:
$700+20+5\frac{9}{100}$
Answer
Here, we have $7$ hundreds, $2$ tens, $5$ ones and $9$ hundredths.
Therefore, the decimal is $725.09.$
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