Math topics

Multiplication practice

Multiplication counts equal groups. 9 × 9 means nine groups of nine. Knowing facts frees working memory for multi-digit problems and word problems later.

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Worked example

Problem. What is 9 × 9?

1. Think of 9 groups of 9.
2. 9 × 10 = 90, then subtract one group of 9: 90 − 9 = 81.
3. Or add 9 nine times to check.

Answer. 81

Practice set

1. Practice 1. What is 7 × 8?

   Show answer

   56

2. Practice 2. What is 6 × 6?

   Show answer

   36

3. Practice 3. What is 12 × 3?

   Show answer

   36

Related pages

• Division practice
• Math for grades 3–5
• Area and perimeter

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