➗ MathGrade 1 · Ages 6-7Hard · 20 Q
Add Within 100: Tens and Ones Worksheet – Grade 1
Add a two-digit number and a one-digit number, or a two-digit number and a multiple of 10, with every sum 100 or less. The easy sheet has no regrouping, like 43 + 5 and 34 + 20, so kids add the tens and then the ones. The hard sheet regroups the ones, like 47 + 6, adds tens to tens, like 30 + 40, and hides a multiple of 10, like 34 + __ = 64, so kids count on by tens to find it.
Answer key included at the end of the PDF
What kids practice
- Add a two-digit number and a one-digit number without regrouping, adding the ones
- Add a two-digit number and a multiple of 10, adding the tens
- Add a two-digit number and a one-digit number when the ones make a new ten
- Find the missing multiple of 10 in a sum like 34 + __ = 64
20
Questions
Hard
Difficulty
1
Grade
~40 min
Time
