Subtract using the Make 10 Strategy 1-57

Use the Make 10 Strategy to subtract a single-digit number. What's 13-5? Visualize 13 on ten frames. Subtract 5 in 2 parts. Imagine crossing off 3 to make 10, then crossing off 2 more. How many are left? 8. Check for accuracy by using or drawing counters. Since 13-3 = 10 and 10-2 = 8, 13-5 = 8.

 
 

2. Practice

Lesson
1-57
Lesson
1-57
Lesson
1-57