0
Add a 0 onto 100, or add 2 0's onto 10.
Multiply by 10 = add a 0
Multiply by 100= add 00
Multiply by 1000 = add 00
Teachers prefere not to say 'add a 0'. This is like a cheat, and does not work for decimals.
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∙ 13y ago
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What is 4 times the square root of 100?
sqrt(100) = ±10 Multiplying this by 4 gives either 10 x 4 = 40 or -10 x 4 = -40.
How is multiplying by a decimal by 100 similar to multiplying a whole number by 100 How is it different?
10000
Why is 100 x 0.1 equals 10 without using the rule of moving the decimals?
You what to understand that 0.1 = 1/10 so you really have.. 100* 1/10 = 100/10 which clearly equals 10 You must not understand the "rules of decimals" yet. Look things over more carefully. For me the rules of decimals says that when you have multiplication, if you move one decimal to the right you must move another decimal to the left by the same amount In your example.. 100 x 0.1 =10 It works because 100 = 100.0 Note when you move a decimal to the right you are effectively multiplying the number by 10, for example... 23.3 x 10 = 233.0 When you move it to the left you are dividing it by 10.... 23.3 /10 = 23.3 ÷ 10 =2.33
What are the rules for adding subtracting multiplying and dividing fractions?
no answer
Is a percent of b equal to b percent of a?
Yes.For example 10% of 20 = 10/100 * 20 = 2AND 20% of 10 = 20/100 * 10 = 2.In both cases we are effectively multiplying a & b and then dividing by 100 so the result will always be the same.
Is dividing by 100 the same as multiplying by 0.1?
10
6 10 as a percent?
6/10 can be converted into percentage by multiplying it by 100 to get 60 percent: 6/10 = 6/10 x 100% = 60%
What is ten squared?
Any number being squared should be it be multiplying 100. So 10 × 100 = 1000.
What number is 20 percent of 500?
500 * 0.2 which is 100 actually if you are multiplying 500x0.2 it would = 10 not 100.
How many tenths are there in 10?
To find this number we divide 10 by (1/10). This is equivalent to multiplying by the reciprocal of 1/10 which is 10. So, 10 / (1/10) = 10 * 10 = 100. Thus there are 100 tenths in 10.
what is the meaning of multiplying fractions and where the rules comes from?
Multiplying fractions is all about division
What is 4 times the square root of 100?
sqrt(100) = ±10 Multiplying this by 4 gives either 10 x 4 = 40 or -10 x 4 = -40.
What percent of 10 dollars is 3.20?
$3.20 is 32% of $10. This is found simply by dividing 10 by 3.2 and multiplying that by 100 to get the percent value.
Why is 100 x 0.1 equals 10 without using the rule of moving the decimals?
You what to understand that 0.1 = 1/10 so you really have.. 100* 1/10 = 100/10 which clearly equals 10 You must not understand the "rules of decimals" yet. Look things over more carefully. For me the rules of decimals says that when you have multiplication, if you move one decimal to the right you must move another decimal to the left by the same amount In your example.. 100 x 0.1 =10 It works because 100 = 100.0 Note when you move a decimal to the right you are effectively multiplying the number by 10, for example... 23.3 x 10 = 233.0 When you move it to the left you are dividing it by 10.... 23.3 /10 = 23.3 ÷ 10 =2.33
How is multiplying by a decimal by 100 similar to multiplying a whole number by 100 How is it different?
10000
Why does moving the decimal point in the divisor and the dividend when dividing by a decimal work?
Moving the decimal point one place to the right is the same as multiplying both, he numerator and the denominator by 10. That is, you are effectively multiplying by 10/10 which equals 1. And since multiplication by 1 does not change the result, it is OK to do that. Similarly, moving two palces to the right is multiplying by 100/100. Similarly moving left.
What can you divide to get 100?
1000 divided by 10 = 100 There are infinitely many answers to this. You can see this idea by starting with 100 and multiplying it by 2,3,4...., each of these products will be a number such that when you divide you get 100.
