About this worksheet
Multiply decimals — by a whole number or by another decimal. Multiply as if both were whole, then count decimal places to position the point.
- Single-digit times tables.
- Whole-number column multiplication.
- Reading a decimal number's place values (tenths, hundredths).
With mastery, the student learns
- Multiply as if both numbers were whole, then place the decimal point.
- The answer's decimal places equal the sum of each operand's decimal places (e.g. 2.5 × 3.4 → 1 + 1 = 2 decimal places).
- Sanity-check the answer's magnitude — 2.5 × 3 should be near 7, not 75 or 0.75.