That is why the digits repeat for 11 × 1 through 11 × 9: 11 × 7 is 7 tens and 7 ones.
11 × 7
= 10 × 7 + 1 × 7
Split 11 into 10 and 1.
= 70 + 7
10 × 7 = 70 and 1 × 7 = 7.
= 77
Each problem multiplies 11 by a number from 1 to 12.
You’ll practice all 12 problems from 11 × 1 through 11 × 12, with answers from 11 to 132.
Ten groups plus one more explains the repeated digits in the early 11s answers.
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 table goes beyond that range. Curriculum timing varies.
That is why the digits repeat for 11 × 1 through 11 × 9: 11 × 7 is 7 tens and 7 ones.
11 × 7
Split 11 into 10 and 1.
10 × 7 = 70 and 1 × 7 = 7.
11 × 12
Split 11 into 10 and 1.
10 × 12 = 120 and 1 × 12 = 12.
The repeat stops here. 12 ones do not fit in the ones place, so 120 + 12 makes 132, not 1212.
This builds on the 10 Times Table.