| |
| |
1. |
Use the array to complete the pair of number sentences. ___ × 3 = 12 ___ ÷ 4 = 3 |
| |
|
 |
| |
|
A. |
3; 12 |
B. |
3; 15 |
| |
|
C. |
4; 15 |
D. |
4; 12 |
| |
|
Hint |
|
| |
2. |
Use the array to complete the pair of number sentences. ___ × 7 = 14 ___ ÷ 7 = 2 |
| |
|
 |
| |
|
A. |
6; 16 |
B. |
2; 16 |
| |
|
C. |
2; 14 |
D. |
6; 14 |
| |
|
Hint |
|
| |
3. |
Write the fact family for 3, 7, and 21. |
| |
|
A. |
3 + 4 = 7, 4 + 3 = 7, 21 − 7 = 14, 21 − 14 = 7 |
B. |
3 × 7 = 21, 7 × 3 = 21, 21 ÷ 7 = 3, 21 ÷ 3 = 7 |
| |
|
C. |
3 + 18 = 21, 18 + 3 = 21, 21 ÷ 7 = 3, 21 ÷ 3 = 7 |
D. |
3 + 7 = 10, 7 × 3 = 21, 21 − 7 = 14, 21 − 14 = 7 |
| |
|
Hint |
|
| |
4. |
Write the fact family for 1, 5, and 5. |
| |
|
A. |
1 × 5 = 5, 5 × 1 = 5, 5 + 1 = 6, 5 × 5 = 25 |
B. |
1 + 5 = 6, 5 + 1 = 6, 5 ÷ 1 = 5, 5 ÷ 5 = 1 |
| |
|
C. |
1 × 5 = 5, 5 × 1 = 5, 5 ÷ 1 = 5, 5 ÷ 5 = 1 |
D. |
5 − 1 = 4, 5 − 4 = 1, 5 × 1 = 5, 5 ÷ 5 = 1 |
| |
|
Hint |
|
| |
5. |
How are the numbers in a fact family related? |
| |
|
A. |
Each fact uses the same four numbers. |
B. |
Each fact uses the same two numbers. |
| |
|
C. |
Each fact uses the same three numbers. |
D. |
The facts are all the same. |
| |
|
Hint |
|
|