Question

numbers by decimals
t

1. $3 \times 0.045 =$
2. $1 \times 0.028 =$
3. $3 \times 0.90 =$
4. $9 \times 0.014 =$
5. $7 \times 0.036 =$
6. $9 \times 0.60 =$
7. $6 \times 0.091 =$
8. $6 \times 0.43 =$

Explanation:

Problem 2: \( 3 \times 0.045 \)

Step 1: Multiply the numbers ignoring decimals

\( 3 \times 45 = 135 \)

Step 2: Count the decimal places in the original numbers

\( 0.045 \) has 3 decimal places.

Step 3: Place the decimal in the result

\( 135 \) with 3 decimal places is \( 0.135 \)

Step 1: Any number multiplied by 1 is itself

So \( 1 \times 0.028 = 0.028 \)

Step 1: Multiply the numbers ignoring decimals

\( 3 \times 90 = 270 \)

Step 2: Count the decimal places in the original numbers

\( 0.90 \) has 2 decimal places.

Step 3: Place the decimal in the result

\( 270 \) with 2 decimal places is \( 2.70 \) (or simply \( 2.7 \))

Answer:

\( 0.135 \)

Problem 4: \( 1 \times 0.028 \)