Chapter 3.3
Adding numbers with 5s and 10s
What You'll Learn
Recognize how adding 5 increases numbers by counting up five steps
Apply the strategy of adding 10 by moving to the next ten
Calculate sums up to 20 using 5s and 10s as building blocks
Build number sense by understanding place value patterns with 5 and 10
What You'll Practice
1
Adding 5 to single-digit numbers up to 20
2
Adding 10 to numbers up to 20
3
Counting forward by 5s and 10s to find sums
Why This Matters
Adding with 5s and 10s builds your foundation for all future math. These friendly numbers help you add faster, understand place value, and prepare you for mental math strategies you'll use every day, from counting money to telling time.
This Unit Includes
Practice exercises
Skills
Addition
Counting
Number Sense
Place Value
Mental Math
