In this lesson, we will learn how to multiply by 9 using models or patterns and complete the times table of 9 up to 10 × 9.
Q1:
We can calculate 2×9 using the number line by making 2 jumps of 9, as shown.
Thus, 2×9=18.
Use the number line to find the result of 3×9.
Q2:
Complete: 9×=81.
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?
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