Continue your child’s math learning
Sign up for a FREE Splash Math account.
Signup with Email
Why parents choose Splash Math for their first graders?
Intelligently adapts to the way each child learns
Get coins for each correct answer and redeem coins for virtual pets
Monitor progress with iPhone app, weekly emails and detailed dashboards
Add Multiples of 10- 1st Grade Math
Practice adding 2 multiples of 10. Start with addition using pictorial representation of numbers (base-10 blocks). Then progress to addition using place value understanding, i.e. by adding tens and ones to add numbers.
Common Core Alignment
1.NBT.4Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.