9 × 7
= 10 × 7 − 1 × 7
9 is 10 with 1 taken away.
= 70 − 7
10 × 7 = 70 and 1 × 7 = 7.
= 63
Each problem multiplies 9 by a number from 1 to 12.
You’ll practice all 12 problems from 9 × 1 through 9 × 12, with answers from 9 to 108.
A useful way to think about the 9s is to start with 10 groups and take one group away.
Typical level: Grade 3 and beyondThe U.S. Common Core expects Grade 3 students to know products of two one-digit numbers from memory. This practice continues through ×12. Curriculum timing varies.
9 × 7
9 is 10 with 1 taken away.
10 × 7 = 70 and 1 × 7 = 7.
Each 9s answer is 9 more than the one before: 10 more, then 1 less. 9 × 6 = 54 and 9 × 7 = 63.
Take away one whole group of 7, not just 1. This builds on the 10 Times Table.