Question

please help me if you give a proper answer I will mark your the brainlist if if you give irrelevant answers I will report that answer​

Answer 1

1. 809.009

2. 29

3. 0.000009

4. Like decimals

5. 0.004

6. 75000

7. 30080

8. 1.23, 2.34, 3.45, 4.56

9. 2.1

10. Unlike decimals

11. 980

Hope it helps you...plz mark me as the brainliest and also follow me....

Answer 2

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1. To Find :

The value of 945.341 - 1042.792 + 875.435 + 31.025

★ Solution :

$945.341 - 1042.792 + 875.435 + 31.025 \\ \\ = ( 945.341 + 875.435 + 31.025) - 1042.792 \\ \\ = 1851.801 - 1042.792 \\ = 809.009$

Therefore, option d) is correct.

2. To Find :

The value of ? in 0.9637 + ? +38.9 + 22.257 = 91.1207

★ Solution :

Let the ? be x

$0.9637 + x + 38.9 + 22.257 = 91.1207 \\ = > x = 91.1207 - (0.9637 + 38.9 + 22.257) \\ = > x = 91.1207 - 62.1207 = 29$

Therefore the c) option is correct.

3. To Find :

The value of 1 × 0.3 × 0.01 × 0.003

★ solution :

$1 \times 0.3 \times 0.01 \times 0.003 \\ = 1 \times \frac{3}{10} \times \frac{1}{100} \times \frac{3}{1000} \\ = \frac{9}{1000000 } \\ = 0.000009$

Therefore option a) is the correct one.

4. To find :

Decimals having the same number of decimal places is called ________.

★ Solution :

Decimals having the same number of decimal places is called like decimals.

(eg- 0.1, 0.3, 0.6 are one placed decimals and these three are known as like decimals.)

So, the answer is option b)

5. To Find :

The value of 0.4/100

★ Solution :

$\frac{0.4}{100} \\ = 0.4 \times \frac{1}{100} \\ = \frac{4}{10} \times \frac{1}{100} \\ = \frac{4}{1000} = 0.004$

So the option a) is the correct one.

6. To Find :

The value of 75 km = _____ m

★ Solution :

We know that 1 km = 1000 m

So, 75 km = (75 × 1000)) m = 75000m

Therefore option a) is correct.

7. To Find :

The value of 3.008 × 10000

★ Solution :

$3.008 \times 10000 \\ = \frac{3008}{1000} \times 10000 \\ = 3008 \times 10 = 30080$

The d) option is correct.

8. To Find :

Find out the like decimals.

★ Solution :

• We know that the decimals having the same number of decimal places are known as like decimals.

• So among the four option, option c) 1.23, 2.34, 3.45, 4.56 has the same.

• So option c) is correct.

9. To find :

The value of

$2 \times \frac{1}{10}$

★ Solution :

$2 \times \frac{1}{10} \\ = 2 + \frac{1}{10} \\ = \frac{(2 \times 10) + 1}{10} \\ = \frac{20 + 1}{10} = \frac{21}{10} = 2.1$

Option d) is correct.

10. To Find :

Decimals are not having the same number of decimal places are called ___.

★ Solution :

Decimals are not having the same number of decimal places are called Unlike Decimals. (eg- 67.8, 8.965, 2.55 are unlike decimals)

So the option c) is correct one.

11. To Find :

98 cm = ___ mm

★ Solution :

We know that 1 cm = 10 mm

So 98 cm = (98 × 10) mm = 980 mm

The option a) is correct one.