Question

do these problems in your head. use paper only for the problems that you just cant do in your do as many of these problems without paper as you can. do not use a calculator at all. the following problems are all division problems. 56 ÷ 0.8 = 2.7 ÷ 9 = 1.4 ÷ 0.2 = 1800 ÷ 0.9 = 0.18 ÷ 0.6 =

Explanation:

Step1: Eliminate decimal (56÷0.8)

Multiply numerator/denominator by 10: $\frac{560}{8}$

Step2: Calculate 560÷8

$560 \div 8 = 70$

Step3: Direct divide (2.7÷9)

$2.7 \div 9 = 0.3$

Step4: Eliminate decimal (1.4÷0.2)

Multiply numerator/denominator by 10: $\frac{14}{2}$

Step5: Calculate 14÷2

$14 \div 2 = 7$

Step6: Eliminate decimal (1800÷0.9)

Multiply numerator/denominator by 10: $\frac{18000}{9}$

Step7: Calculate 18000÷9

$18000 \div 9 = 2000$

Step8: Eliminate decimal (0.18÷0.6)

Multiply numerator/denominator by 100: $\frac{18}{60}$

Step9: Simplify and calculate

$\frac{18}{60} = 0.3$

Answer:

$56 \div 0.8 = 70$
$2.7 \div 9 = 0.3$
$1.4 \div 0.2 = 7$
$1800 \div 0.9 = 2000$
$0.18 \div 0.6 = 0.3$