1. answer - Let us assume the missing number be x,
Then ,
=0.1−x=0.03
By sending – x from left hand side to the right hand side it become x and 0.03 from right hand side to the left hand side it become −0.03 we get,
=0.1−0.03=x
=0.07
2 answer-×100x×0.4=0.4
⇒x=0.4×0.40.4×100=4×44×10×100=250.
3 answer-In order to find the product, we first multiply 22 by 2.
We have, 22 × 2 = 44
Now, 2.2 has 1 decimal place, 0.2 has 1 decimal place and 0.001 has 3 decimal places.
The sum of the decimal places is 1 + 1 + 3 = 5.
So, the product must contain 5 places of decimals.
∴ 2.2 × 0.2 × 0.001 = 0.00044
Thus, the value of 2.2 × 0.2 × 0.001 = 0.00044
4 answer-0.8007 × 1000=800.7
5 answer - 25.567÷ 1000=0.025567
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Answers & Comments
1. answer - Let us assume the missing number be x,
Then ,
=0.1−x=0.03
By sending – x from left hand side to the right hand side it become x and 0.03 from right hand side to the left hand side it become −0.03 we get,
=0.1−0.03=x
=0.07
2 answer-×100x×0.4=0.4
⇒x=0.4×0.40.4×100=4×44×10×100=250.
3 answer-In order to find the product, we first multiply 22 by 2.
We have, 22 × 2 = 44
Now, 2.2 has 1 decimal place, 0.2 has 1 decimal place and 0.001 has 3 decimal places.
The sum of the decimal places is 1 + 1 + 3 = 5.
So, the product must contain 5 places of decimals.
∴ 2.2 × 0.2 × 0.001 = 0.00044
Thus, the value of 2.2 × 0.2 × 0.001 = 0.00044
4 answer-0.8007 × 1000=800.7
5 answer - 25.567÷ 1000=0.025567