Move the decimal point, the same number of places as the power of 10.
That way ---> to multiply. This way <--- to divide.
because there the same
Because the decimal system is based on 10 ("decem" = 10 )
0.10 = 1/10 so that multiplying by 0.10 is the same as dividing by 10.
10^4 * 10^7 = 10^11 When multiplying exponents with the same base (in this case, 10), you add the exponents (4+7). If you were dividing, you'd subtract the exponents.
1
10
because there the same
x * 0,1 = x/10 This is given. x*0,1 = 0,1x This is calculated. x/10 = 0,1x This is calculated. 0,1x = 0,1x Evicence is stated, task solved. Multiplying with 0,1 is the same as saying multiplying with 1/10. Multiplying with 1/10 is the same as dividing with 10.
Because the decimal system is based on 10 ("decem" = 10 )
0.10 = 1/10 so that multiplying by 0.10 is the same as dividing by 10.
10^4 * 10^7 = 10^11 When multiplying exponents with the same base (in this case, 10), you add the exponents (4+7). If you were dividing, you'd subtract the exponents.
4.9 = 49/10. We can transform it into fraction by multiplying and dividing by 10.
by dividing the hemoglobin in grams per deciliter by the hematocrit, then multiplying by 100
1
Since 0.1 is the reciprocal of 10, the two operations are the same.
The multiple of ten can be reduced to the smaller number by moving the decimal place of the numerator one place to the left. However, this may only be a marginal short cut. For example, dividing 1256 by 3450 is equivalent to dividing 125.6 by 345 but that is hardly a shortcut!
$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.