Interactive practice questions
Using the fact family of $4$4, $4$4, and $8$8.
 |
$+$+ |  |
$=$= |  |
| $4$4 | $+$+ | $4$4 | $=$= | $8$8 |
What is $8-4$8−4?
Easy
< 1min
Using the fact family of $9$9, $9$9, and $18$18:
Easy
< 1min
We are interested in the fact family of $5$5, $5$5, and $10$10:
Easy
1min
Using the fact family of $2$2, $5$5, and $7$7.
Easy
< 1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account