Question

Divide the amount in parentheses into decimal and decimal groups?​

Answer 1

sorry I don't have answer

Answer 2

0.45÷3.6

Step 1: We'll receive a result smaller than 1 because the divisor is bigger than the dividend. Because 0.45 is nearly a tenth of the size of 3.6, we expect a result close to 0.1.

Step 2: If the divisor isn't a whole number, move the decimal point to the right one place to make it one. Also, move the decimal point one position to the right in the dividend.

$\frac{36}{4.5}$

Step 3: Divide as usual, adding extra zeros to the right of 4.5 if needed.

$\frac{36}{4.500}$

= 125

Step 4: Place the quotient's decimal point right above the dividend's decimal point.

$\frac{36}{4.500}$

0.125 is the result.

Step 5: Compare your new estimate to your old one. We're good because 0.125 is close to 0.1.

When solving a decimal division problem, it's sometimes better to apply mental math. When you observe that moving the decimal points around can turn the problem into one you know the answer to, this is an excellent method to use.