Use multiplication:
4000 x 28:
Line up our numbers vertically:
| 4 | 0 | 0 | 0 | |
| x | 2 | 8 |
Current result: 8 x 0 = 0
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 0 |
Show value = 0
Current result: 8 x 0 = 0
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 0 | 0 |
Show value = 0
Current result: 8 x 0 = 0
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 0 | 0 | 0 |
Show value = 0
Current result: 8 x 4 = 32
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 3 | 2 | 0 | 0 | 0 |
Show value = 32
New multiplication row:
Insert a 0 as our placeholder
Current result: 2 x 0 = 0
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 3 | 2 | 0 | 0 | 0 | |||
| 0 | 0 |
Show value = 0
Current result: 2 x 0 = 0
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 3 | 2 | 0 | 0 | 0 | |||
| 0 | 0 | 0 |
Show value = 0
Current result: 2 x 0 = 0
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 3 | 2 | 0 | 0 | 0 | |||
| 0 | 0 | 0 | 0 |
Show value = 0
Current result: 2 x 4 = 8
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 3 | 2 | 0 | 0 | 0 | |||
| 8 | 0 | 0 | 0 | 0 |
Show value = 8
FINAL ADDITION SECTION
Add up our results by column:
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 3 | 2 | 0 | 0 | 0 | |||
| 8 | 0 | 0 | 0 | 0 | |||
| 0 |
Adding up column 1, we get: 0 + 0
Our column sum becomes 0.
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 3 | 2 | 0 | 0 | 0 | |||
| 8 | 0 | 0 | 0 | 0 | |||
| 0 | 0 |
Adding up column 2, we get: 0 + 0
Our column sum becomes 0.
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 3 | 2 | 0 | 0 | 0 | |||
| 8 | 0 | 0 | 0 | 0 | |||
| 0 | 0 | 0 |
Adding up column 3, we get: 0 + 0
Our column sum becomes 0.
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 3 | 2 | 0 | 0 | 0 | |||
| 8 | 0 | 0 | 0 | 0 | |||
| 2 | 0 | 0 | 0 |
Adding up column 4, we get: 2 + 0
Our column sum becomes 2.
| 4 | 0 | 0 | 0 | ||||
| x | 2 | 8 | |||||
| 3 | 2 | 0 | 0 | 0 | |||
| 8 | 0 | 0 | 0 | 0 | |||
| 11 | 2 | 0 | 0 | 0 |
Adding up column 5, we get: 3 + 8
Our column sum becomes 11.
Since our sum is greater than 9, we will carry a 1 over for the next column sum.
Excel or Google Sheets formula:
Excel or Google Sheets formula:=4000*28Final Answer
Common Core State Standards In This Lesson
What is the Answer?
How does the Basic Math Operations Calculator work?
* Addition (Adding) (+)
* Subtraction (Subtracting) (-)
* Multiplication (Multiplying) (x)
* Long division (Dividing) with a remainder (÷)
* Long division to decimal places (÷)
* Partial Sums (Shortcut Sums)
* Short Division
* Duplication and Mediation
This calculator has 2 inputs.
What 4 formulas are used for the Basic Math Operations Calculator?
What 10 concepts are covered in the Basic Math Operations Calculator?
- addition
- math operation involving the sum of elements
- basic math
- Elementary math subject to help students understand fundamentals, before moving on to more difficult subjects
- basic math operations
- long division
- a standard division algorithm suitable for dividing multi-digit numerals that is simple enough to perform by hand.
- multiplication
- math operation involving the product of elements
- operations
- partial
- A part of a whole. Incomplete.
- remainder
- The portion of a division operation leftover after dividing two integers
- subtraction
- math operation involving the difference of elements
- sum
- the total amount resulting from the addition of two or more numbers, amounts, or items
