Add Tens
Add multiples of 10 to two-digit numbers.
2nd Grade - Math - Add within 100
About This Skill
Adding tens is one of the most useful mental math strategies a Grade 2 student can practice. By focusing on the tens digit, students combine multiples of 10 with two-digit numbers quickly and accurately. This practice builds calculation speed, strengthens number sense, and prepares students to master multi-step word problems.
Skills & Topics
- Number Sense and Operations
- Whole Numbers
- Addition
- Place Value
- Adding
- Addend
- Equations
- Sum
- Add
- Digit
Curriculum Alignment
- AC9M2N04: add and subtract one- and two-digit numbers, representing problems using number sentences and solve using part-part-whole reasoning and a variety of calculation strategies
- ENG-MATH-Y2-AS.5: Add and subtract numbers using concrete objects, pictorial representations, and mentally, including a two-digit number and 10s.
- NY-2.NBT.5
- 2.NBT.B.5: Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
- 2.NBT.B.5
- MA.2.NSO.2.3
- MATH.2.4.B
- BC.MATH.G2.CONTENT.04
- AB.MATH.G2.MAT2-OI1-GQ2-LO1
- ZA.CAPS.MATH.G2.NOR.1.16
- G2.B2.3
- SG.MATH.P2.NA.WN.2.2