Question

leveled practice in 6 and 7, find each product.

1. $42.3 \times 1 = \underline{\quad\quad}$

$42.3 \times 10 = \underline{\quad\quad}$
$42.3 \times 10^2 = \underline{\quad\quad}$

1. $\underline{\quad\quad} = 0.086 \times 10^1$

$\underline{\quad\quad} = 0.086 \times 100$
$\underline{\quad\quad} = 0.086 \times 1,000$
place - value patterns can help you solve these problems.

Explanation:

Step1: Multiply by 1 (identity property)

$42.3 \times 1 = 42.3$

Step2: Multiply by 10 (shift decimal right)

$42.3 \times 10 = 423$

Step3: Multiply by $10^2$ (shift decimal right twice)

$42.3 \times 10^2 = 42.3 \times 100 = 4230$

Step4: Calculate $0.086 \times 10^1$

$0.086 \times 10^1 = 0.086 \times 10 = 0.86$

Step5: Calculate $0.086 \times 100$

$0.086 \times 100 = 8.6$

Step6: Calculate $0.086 \times 1000$

$0.086 \times 1000 = 86$

Answer:

1. $42.3$, $423$, $4230$
2. $0.86$, $8.6$, $86$