Solution - Long multiplication
Step-by-step explanation
1. Rewrite the numbers from top to bottom aligned to the right
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 8 | 0 | 0 | 0 | 0 | 0 | |
| × | 4 | ||||||
2. Multiply the numbers using long multiplication method
Start by multiplying the ones digit (4) of the multiplier 4 by each digit of the multiplicand 1,800,000, from right to left.
Multiply the ones digit (4) of the multiplicator by the number in the ones place value:
4×0=0
Write 0 in the ones place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 8 | 0 | 0 | 0 | 0 | 0 | |
| × | 4 | ||||||
| 0 |
Multiply the ones digit (4) of the multiplicator by the number in the tens place value:
4×0=0
Write 0 in the tens place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 8 | 0 | 0 | 0 | 0 | 0 | |
| × | 4 | ||||||
| 0 | 0 |
Multiply the ones digit (4) of the multiplicator by the number in the hundreds place value:
4×0=0
Write 0 in the hundreds place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 8 | 0 | 0 | 0 | 0 | 0 | |
| × | 4 | ||||||
| 0 | 0 | 0 |
Multiply the ones digit (4) of the multiplicator by the number in the thousands place value:
4×0=0
Write 0 in the thousands place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 8 | 0 | 0 | 0 | 0 | 0 | |
| × | 4 | ||||||
| 0 | 0 | 0 | 0 |
Multiply the ones digit (4) of the multiplicator by the number in the ten thousands place value:
4×0=0
Write 0 in the ten thousands place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 8 | 0 | 0 | 0 | 0 | 0 | |
| × | 4 | ||||||
| 0 | 0 | 0 | 0 | 0 |
Multiply the ones digit (4) of the multiplicator by the number in the hundred thousands place value:
4×8=32
Write 2 in the hundred thousands place.
Because the result is greater than 9, carry the 3 to the millions place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 3 | |||||||
| 1 | 8 | 0 | 0 | 0 | 0 | 0 | |
| × | 4 | ||||||
| 2 | 0 | 0 | 0 | 0 | 0 |
Multiply the ones digit (4) of the multiplicator by the number in the millions place value and add the carried number (3):
4×1+3=7
Write 7 in the millions place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 3 | |||||||
| 1 | 8 | 0 | 0 | 0 | 0 | 0 | |
| × | 4 | ||||||
| 7 | 2 | 0 | 0 | 0 | 0 | 0 |
The solution is: 7,200,000
How did we do?
Please leave us feedback.