When you multiply a 4 digit number by a 2 digit number?
Table of Contents
When you multiply a 4 digit number by a 2 digit number?
Specifically, we learned that when multiplying a four-digit number by a two-digit number, each of the digits in the two-digit number, starting with the digit in the ones place, will get their turn to multiply. You then add the two answers together to get your final answer.
Why do you put a zero when multiplying?
When you multiply the second part, add a “0” to that answer, because you are multiplying the value from the tens column (the 2). If it’s from the tens, add a zero. 768 + 1920 = 2,688 (See how we added a “0” to the “192” value?)
How do you multiply 4 digit numbers easily?
Multiplying 4-Digit Numbers Quickly
- Write down both 4-digit numbers above each other.
- Multiply the first number by each digit of the second.
- Carry any numbers larger than 9, and finally.
- Add the results.
Why do you need a placeholder when multiplying by a 2 digit number?
Place value needs to be reinforced, so that when pupils multiply by the 1, they understand that they are actually multiplying by a ten. Similarly, when multiplying by 3 digit numbers, two placeholders are needed to maintain the place value when multiplying by the hundreds digit.
How big is the multiplying 4-digit by 2- digit numbers (a) math worksheet?
Use the buttons below to print, open, or download the PDF version of the Multiplying 4-Digit by 2-Digit Numbers (A) math worksheet. The size of the PDF file is 34154 bytes. Preview images of the first and second (if there is one) pages are shown.
What is the smallest 4 digit number and the largest 4 digit?
The smallest 4 digit number is 1,000. In contrast, the largest 4 digit number is 9,999.
How do you multiply 3 digit numbers in a column?
Multiplying 3-digit by 2-digit numbers in columns Let’s say you want to multiply 372 by 43. The first thing you do is place the large number (the 3-digit number) above the smaller number (the 2-digit number). Make sure you line them up so the ones places are in a column, and the tens places are in a column.
What grade do you have to be to multiply numbers?
They usually start learning this method in grade 4 and repeat it in grade 5 and 6. Let’s say you want to multiply 372 by 43. The first thing you do is place the large number (the 3-digit number) above the smaller number (the 2-digit number).