Worksheet: Multiplying by 9

In this worksheet, we will practice modeling multiplication by 9 and reciting the times table of 9 up to 10×9.

Q1:

Complete: 9×=81.

Q2:

Use +, , or × to fill in the blank: 9×2=224.

  • A
  • B+
  • C×

Q3:

Complete: 9×=54.

Q4:

Complete: 9×=18.

Q5:

Complete: 9×=45.

Q6:

Complete: 9×=9.

Q7:

Use the given ruler to find 1×9.

Q8:

Complete the table.

Multiply by 9
2  
3  
4  36
  • A27, 45
  • B18, 27
  • C36, 45
  • D27, 36
  • E18, 36

Q9:

A school bought 5 new tables for each of 9 empty classrooms. How many new tables will there be in the 9 classrooms?

Q10:

Fill in the blank: 9×3=.

Q11:

This robot multiplies any input by 9 to give an output.

If we give the robot an input of 2, it will give an output of 18, which is 9×2.

What would the output of the robot in the following case be?

What would the output of the robot in the following case be?

Q12:

The sequence chart will help us multiply by 9 using skip counting by nines up to 10 times.

Skip counting by nines
12345678910
11121314151617181920
21222324252627282930
31323334353637383940
41424344454647484950
51525354555657585960
61626364656667686970
71727374757677787980
81828384858687888990

Use skip counting to find 9×2.

Use skip counting to find 9×9.

Q13:

Notice how each row is 9 more than the previous one:

Find the result of the following:

Find the result of the following:

Q14:

Notice the pattern in 9×4 and 9×5 as we proceed:

9×4=36,9×5=45.

The tens increase and the ones decrease.

Use the same technique to find 9×6.

Use the same technique to find 9×7.

Q15:

Fill in the blank: 2 groups of 9 are equal to .

Q16:

David is arranging his Lego bricks in rows. Each row consists of 9 bricks.

He found that the number of Lego bricks in 2 rows can be calculated as 9×2=18.

Fill in the blank with the number of Lego bricks in 4 rows: 9×4=.

How many Lego bricks are there in 7 rows?

Q17:

To complete the multiplication wheel, we simply multiply the number in the center with the ones in the middle circle, and then we write the answers in the corresponding outer blank circle.

What is the number that replaces the question mark?

What is the number that replaces the question mark?

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