## Multiplication Facts Strategies - Sample Math Practice Problems

The math problems below can be generated by MathScore.com, a math practice program for schools and individual families. References to complexity and mode refer to the overall difficulty of the problems as they appear in the main program. In the main program, all problems are automatically graded and the difficulty adapts dynamically based on performance. Answers to these sample questions appear at the bottom of the page. This page does not grade your responses.

See some of our other supported math practice problems.

### Complexity=1, Mode=2,5,10

Answer the following problems from memory.
 1.   2 × 9 = 2.   2 × 7 =

### Complexity=1, Mode=9

Answer either from memory or by applying strategies.
 1.   2 × 9 = 2.   8 × 9 =

### Complexity=1, Mode=4

Answer either from memory or by applying strategies.
 1.   4 × 2 = 2.   4 × 5 =

### Complexity=1, Mode=6

Answer either from memory or by applying strategies.
 1.   6 × 7 = 2.   4 × 6 =

### Complexity=1, Mode=leftover

Answer the following problems from memory.
 1.   3 × 7 = 2.   7 × 7 =

### Complexity=1, Mode=2,5,10

Answer the following problems from memory.
12 × 9 =
22 × 7 =

### Complexity=1, Mode=9

Answer either from memory or by applying strategies.
12 × 9 =
Solution
When multiplying by 9, subtract your digit by 1 to get the tens digit.
So 2 - 1 = 1.
The sum of the digits in your answer adds up to 9. So if the tens digit is 1, then the ones digit is 9 - 1 = 8.

Alternate strategy: When multiplying by 9, just multiply by 10 and subtract the number. In this case, we have
2 × 9 =
2 × 10 - 2 =
20 - 2 =
18

Alternate strategy: Put both hands in front of you with all 10 fingers out. Take finger #2 and curl it. You'll see 1 finger to your left and 8 finger to your right. See how this gives you the answer of 18?
28 × 9 =
Solution
When multiplying by 9, subtract your digit by 1 to get the tens digit.
So 8 - 1 = 7.
The sum of the digits in your answer adds up to 9. So if the tens digit is 7, then the ones digit is 9 - 7 = 2.

Alternate strategy: When multiplying by 9, just multiply by 10 and subtract the number. In this case, we have
8 × 9 =
8 × 10 - 8 =
80 - 8 =
72

Alternate strategy: Put both hands in front of you with all 10 fingers out. Take finger #8 and curl it. You'll see 7 fingers to your left and 2 fingers to your right. See how this gives you the answer of 72?

### Complexity=1, Mode=4

Answer either from memory or by applying strategies.
14 × 2 =
Solution
To multiply by 4, multiply by 2, then multiply by 2 again.
2 × 2 × 2 =
4 × 2 =
8
24 × 5 =
Solution
To multiply by 4, multiply by 2, then multiply by 2 again.
5 × 2 × 2 =
10 × 2 =
20

### Complexity=1, Mode=6

Answer either from memory or by applying strategies.
16 × 7 =
Solution
To multiply by 6, multiply by 5 and add the number.
7 × 6 =
7 × 5 + 7 =
35 + 7 =
42
24 × 6 =
Solution
To multiply by 6, multiply by 5 and add the number.
4 × 6 =
4 × 5 + 4 =
20 + 4 =
24

### Complexity=1, Mode=leftover

Answer the following problems from memory.