Determine each product. Show your thinking. a) (2.1) * (0.02) b) (0.47) * (0.03) c) 15 * (0.004) d) (0.7) * (0.05)
Understand the Problem
The question is asking to calculate the products of four different pairs of decimal numbers. It requires step-by-step multiplication for each pair, showcasing the process of arriving at the final answer.
Answer
a) $0.042$ b) $0.0141$ c) $0.06$ d) $0.035$
Answer for screen readers
a) $0.042$
b) $0.0141$
c) $0.06$
d) $0.035$
Steps to Solve
-
Calculate the product of (2.1) and (0.02)
First, multiply the numbers:
$$ 2.1 \times 0.02 = 0.042 $$ -
Calculate the product of (0.47) and (0.03)
Next, multiply these numbers:
$$ 0.47 \times 0.03 = 0.0141 $$ -
Calculate the product of (15) and (0.004)
Now, multiply these values:
$$ 15 \times 0.004 = 0.06 $$ -
Calculate the product of (0.7) and (0.05)
Finally, multiply these two numbers:
$$ 0.7 \times 0.05 = 0.035 $$
a) $0.042$
b) $0.0141$
c) $0.06$
d) $0.035$
More Information
These products showcase basic multiplication involving decimal numbers. When multiplying decimals, you can ignore the decimal points, perform the multiplication, and then count how many total decimal places are in both numbers to place the decimal point correctly in the answer.
Tips
- Misplacing the decimal point due to not counting decimal places accurately.
- Not lining up numbers properly when doing hand multiplication.
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