➕ Addition within 100
Master two-digit addition strategies including regrouping, decomposition, and number lines. This quiz builds fluency with sums up to 100 and helps you solve real-world word problems that require two-step addition. **What you'll learn:** - Add two-digit numbers using regrouping (carrying) - Decompose numbers to make addition easier - Use number lines and ten-frames to visualize addition - Solve two-step word problems involving addition - Build fluency with sums up to 100
Questions in this quiz
Answers hidden — play to find out.
- Question 1
What is ?
- Question 2
When we add , we need to regroup because the ones add up to 13.
- Question 3
Use decomposition to solve . Which shows the correct breakdown?
- Question 4
Maria has 27 stickers. She buys 18 more stickers. How many stickers does she have now?
- Question 5
The sum can be solved by thinking and then adjusting.
- Question 6
What is using regrouping?
- Question 7
On a number line, if you start at 34 and jump forward 23, where do you land?
- Question 8
- Question 9
Sam reads 16 pages on Monday and 24 pages on Tuesday. How many pages did he read in total?
- Question 10
Which addition problem has a sum of 60?
- Question 11
When adding 17 and 14, the ones column sums to 11, so we write down 1 and carry 1 ten.
- Question 12
Aisha has 28 marbles. Her friend gives her 19 more. Then she gives 7 away. How many does she have now?
- Question 13
- Question 14
Using a ten-frame strategy, how would you add 16 + 14?
- Question 15
What is ?
- Question 16
You can use jump strategies on a number line to add any two numbers up to 100.
- Question 17
A shop has 38 apples. They receive 22 more apples. How many apples do they have?