Question

1. solve by drawing disks on a place value chart. write an equation and express the product in standard form.

a. 2 copies of 4 tenths = 2×0.4 = 0.8
2 copies means 2 groups. so, ill multiply 2 times 4 tenths. the answer is 8 tenths, or 0.8.
ill draw a place value chart to help me solve, and this dot is the decimal point.
each dot represents 1 tenth, so ill draw 2 groups of 4 tenths.
b. 3 times as much as 6 hundredths = 3×0.06 = 0.18
ill multiply 3 times 6 hundredths. the answer is 18 hundredths, or 0.18.
ill draw 3 groups of 6 hundredths.
ill bundle 10 hundredths and exchange them for 1 tenth.

Explanation:

Step1: Analyze part a

We need to find 2 copies of 4 tenths. Mathematically, it is $2\times0.4$.

Step2: Calculate part a

$2\times0.4 = 0.8$

Step3: Analyze part b

We need to find 3 times 6 hundredths. Mathematically, it is $3\times0.06$.

Step4: Calculate part b

$3\times0.06=0.18$

Answer:

a. Equation: $2\times0.4 = 0.8$, Product in standard form: $0.8$
b. Equation: $3\times0.06 = 0.18$, Product in standard form: $0.18$