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For more maths help & free games related to
this, visit: www.makemymathsbetter.com
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
x4
First, multiply 4 x 7 = 28
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
x4
8

First, multiply 4 x 7 = 28
The 8 is written in the units column.
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
x4
8
2

First, multiply 4 x 7 = 28
The 8 is written in the units column.
The 2 is carried into the tens column
& written under the answer bar
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
Then, multiply 4 x 9 = 36
This is added to the 2 that was
carried into the tens column
previously, to give a total of
38.

x4
8
2
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
Then, multiply 4 x 9 = 36
This is added to the 2 that was
carried into the tens column
previously, to give a total of
38.
The 8 is written in the tens
column.

x4
8 8
2
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
Then, multiply 4 x 9 = 36
This is added to the 2 that was
carried into the tens column
previously, to give a total of
38.
The 8 is written in the tens
column. The 3 is carried into
the hundreds column &
written under the answer bar

x4
8 8
3

2
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
Then, multiply 4 x 3 = 12
This is added to the 3 that was
carried into the hundreds
column previously, to give a
total of 15.

x4
8 8
3

2
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
Then, multiply 4 x 3 = 12
This is added to the 3 that was
carried into the hundreds
column previously, to give a
total of 15.
The 5 is written in the
hundreds column.

x4
5 8 8
3

2
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
Then, multiply 4 x 3 = 12
This is added to the 3 that was
carried into the hundreds
column previously, to give a
total of 15.
The 5 is written in the
hundreds column. The 1 is
written in the thousands
column.

x4
1 5 8 8
3

2
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
x4
1 5 8 8
3

2

So, 397 x 4 = 1588
For example 397 x 4:
Set the question out like
this:
Th H T U
3 9 7
x4
1 5 8 8
3

2

So, 397 x 4 = 1588

For more help with your maths, try my book:
mastering multiplication tables
on amazon.com

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Multiplying a 3 Digit Number by a 1 Digit Number

  • 1. For more maths help & free games related to this, visit: www.makemymathsbetter.com
  • 2. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 x4 First, multiply 4 x 7 = 28
  • 3. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 x4 8 First, multiply 4 x 7 = 28 The 8 is written in the units column.
  • 4. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 x4 8 2 First, multiply 4 x 7 = 28 The 8 is written in the units column. The 2 is carried into the tens column & written under the answer bar
  • 5. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 Then, multiply 4 x 9 = 36 This is added to the 2 that was carried into the tens column previously, to give a total of 38. x4 8 2
  • 6. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 Then, multiply 4 x 9 = 36 This is added to the 2 that was carried into the tens column previously, to give a total of 38. The 8 is written in the tens column. x4 8 8 2
  • 7. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 Then, multiply 4 x 9 = 36 This is added to the 2 that was carried into the tens column previously, to give a total of 38. The 8 is written in the tens column. The 3 is carried into the hundreds column & written under the answer bar x4 8 8 3 2
  • 8. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 Then, multiply 4 x 3 = 12 This is added to the 3 that was carried into the hundreds column previously, to give a total of 15. x4 8 8 3 2
  • 9. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 Then, multiply 4 x 3 = 12 This is added to the 3 that was carried into the hundreds column previously, to give a total of 15. The 5 is written in the hundreds column. x4 5 8 8 3 2
  • 10. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 Then, multiply 4 x 3 = 12 This is added to the 3 that was carried into the hundreds column previously, to give a total of 15. The 5 is written in the hundreds column. The 1 is written in the thousands column. x4 1 5 8 8 3 2
  • 11. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 x4 1 5 8 8 3 2 So, 397 x 4 = 1588
  • 12. For example 397 x 4: Set the question out like this: Th H T U 3 9 7 x4 1 5 8 8 3 2 So, 397 x 4 = 1588 For more help with your maths, try my book: mastering multiplication tables on amazon.com