➕ Addition Within 100
Master adding two-digit and one-digit numbers using concrete materials, pictures, and symbols. Learn counting on, composing tens, and number bonds to solve addition problems with sums up to 100. **What you'll learn:** - Add two-digit and one-digit numbers using multiple strategies - Use number bonds and composing tens to solve problems - Represent addition with concrete materials and pictures - Solve real-world addition problems with sums up to 100
Questions in this quiz
Answers hidden — play to find out.
- Question 1
What is ?
- Question 2
Maria has 32 stickers. Her friend gives her 7 more. How many stickers does Maria have now?
- Question 3
- Question 4
Which strategy would help you solve most quickly?
- Question 5
Use composing tens to solve: . What ten do we make?
- Question 6
Using number bonds, can be shown as 15 split into 12 and 3, then added back together.
- Question 7
What is ?
- Question 8
Tommy drew 45 with tens and ones blocks. His sister adds 4 more ones. How many does he have now?
- Question 9
- Question 10
How can we represent using a number bond?
- Question 11
Emma has 27 marbles. She wins 8 more in a game. How many marbles does Emma have altogether?
- Question 12
When adding , counting on means we say: 42, 43, 44, 45, 46, 47, 48.
- Question 13
Which addition problem would be easiest to solve by composing a ten?
- Question 14
What is ?
- Question 15
Pictorial representations use drawings or pictures of tens and ones to show addition problems.
- Question 16
A baker has 38 cookies. She bakes 7 more. Which equation shows this situation?
- Question 17
Using concrete materials, which shows correctly?
- Question 18
The strategy of 'counting on' works best when adding two numbers that are far apart in size.