Question

1) 30m 5cm=____m. 2)1525gm=____kg. 3)0.9-0.23=____. 4)⅛-⅝+⅞=____. 5)¾×⅞=___. 6) ⅝÷½×⅓=____ 7) (5³+5¹)²=____ 8) -125-(188)+(-20)=_____. 9) product of two integers is positive integer. True or false. 10). 58.8÷1.2

Please tell fast
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Answer 1

$\huge\orange{Questions〳Answers }$

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$\huge\red{1)}$ 30m 5cm = ⎯⎯⎯ m

Solution :-

1m = 100 cm

=> 30m + $\frac{5}{100}$m

=> 30m + 0.05m

=> 30.05 m

The answer is 30m 5cm = 30.05 m

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$\huge\green{2)}$ 1525g = ⎯⎯⎯ kg

Solution :-

1g = 1000 kg

=> $\frac{1525}{1000}$kg

=> 1.525kg

The answer is 1525g = 1.525 kg

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$\huge\blue{3)}$ 0.9 — 0.23 = ⎯⎯⎯

Solution :-

The answer is 0.9 — 0.23 = 0.67

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$\huge\purple{4)}$$\frac{1}{8}$ — $\frac{5}{8}$ + $\frac{7}{8}$

Solution :-

$\frac{1}{8}$ — $\frac{5}{8}$ + $\frac{7}{8}$

=> ( $\frac{1}{8}$ — $\frac{5}{8}$ )+ $\frac{7}{8}$

=> $\frac{1—5}{8}$ + $\frac{7}{8}$

=> ( $\frac{—4}{8}$ ) + $\frac{7}{8}$

=> $\frac{—4}{8}$ => $\frac{—4÷2}{8÷2}$ = $\frac{—2÷2}{4÷2}$ = $\frac{—1}{2}$

=> $\frac{—1}{2}$ + $\frac{7}{8}$

L.C.M of 2 and 8 :-

2│2 , 8

2│1 , 4

2│1 , 2

‎ ‎ │1 , 1

L.C.M = 2 ╳ 2 ╳ 2 = 8

=> $\frac{—1}{2}$ + $\frac{7}{8}$

=> $\frac{4 ╳ (—1) + 1 × 7}{8}$

=> $\frac{—4 + 7}{8}$

=> $\frac{3}{8}$

The answer is $\frac{3}{8}$ .

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$\huge\red{5)}$ $\frac{3}{4}$ × $\frac{7}{8}$ = ⎯⎯⎯

Solution :-

=> $\frac{3 ╳ 7}{4 ╳ 8 }$

=> $\frac{21}{32 }$

The answer is $\frac{21}{32 }$

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$\huge\pink{6)}$ $\frac{5}{8}$ ÷ $\frac{1}{2}$ ╳ $\frac{1}{3}$

Solution :-

The answer is $\frac{5}{48}$

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$\huge\green{7)}$ (5³ + 5¹)²

Solution :-

=> (5³ + 5¹)²

=> ( 5 × 3 + 5 × 1 ) × 2

=> ( 15 + 5 ) × 2

=> 20 × 2

=> 40

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$\huge\red{8)}$ —125 — ( 188 ) + ( —20)

Solution :-

—125 — ( 188 ) + ( —20)

=> ( —125 — 188 ) — 20

=> —313 — 20

=> —333

The answer is —333 .

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