# Lesson Worksheet: Multiplication by 9 Mathematics

In this worksheet, we will practice multiplying by 9 using models or patterns and completing the times table of 9 up to 10 × 9.

Q1:

We can calculate using the number line by making 2 jumps of 9, as shown. Thus, .

Use the number line to find the result of .

Q2:

Complete:

Q3:

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? Q4:

To solve , Mariam uses the following method. Use Mariam’s method to find .

Q5:

Each group contains 9 marbles. Use multiplication to find the number of marbles in 2 groups. Q6:

The multiplication contains an error. Which of these suggestions could be its correction?

• AReplacing 2 with 3
• BReplacing 19 with 27
• CReplacing 2 with 4
• DReplacing 19 with 18

Q7:

What are the missing numbers on this number track? • A27, 45, 72
• B27, 46, 72
• C27, 45, 71
• D28, 45, 72

Q8:

Which multiplication sentence is represented by this array? • A
• B
• C
• D

Q9:

Fill in the blanks: Knowing that , .

• A9, 45
• B5, 41
• C4, 40
• D1, 37

Q10:

Fill in the blanks: The product of 9 and 2 lies between and .

• A5, 10
• B20, 30
• C15, 20
• D1, 9