Assess Yourself
How well do you understand the ideas in this lesson?
Goal:
Goal:
Show What You Know!
Are you ready to take this lesson's quiz? These questions will help you find out. Go back to the lesson if you do not know an answer.
1.
Which number line helps you add
12 + 66?
Yes! This number line has a dot over 66 and jumps 1 ten and 2 ones. The sum is 78.
The number line should have a dot over 66 and jump 1 ten and 2 ones. The sum is 78.
The number line should have a dot over 66 and jump 1 ten and 2 ones. The sum is 78.
2. What is 70 + 30?
- 70
- 30
- 100
We should start at 70 because it is the larger addend and jump 30 because it is the smaller addend. The sum is 100.
We should start at 70 because it is the larger addend and jump 30 because it is the smaller addend. The sum is 100.
Good job! We started at 70 because it is the larger addend and jumped 30 because it is the smaller addend. The sum is 100.
3. What number do you start jumping from to add 23 + 88?
- 23
- 88
- 111
You should begin jumping from 88 because it is the larger addend.
Correct! You will begin jumping from 88 because it is the larger addend.
You should begin jumping from 88 because it is the larger addend.
4.
Which number line helps you add
153 + 18?
Yes! This number line has a dot over 153 and jumps 1 ten and 8 ones. The sum is 171.
The number line should have a dot over 153 and jump 1 ten and 8 ones. The sum is 171.
The number line should have a dot over 153 and jump 1 ten and 8 ones. The sum is 171.
5. What is 87 + 27?
- 114
- 74
- 109
Good job! We started at 87 because it is the larger addend and jumped 27 because it is the smaller addend. The sum is 114.
We should start at 87 because it is the larger addend and jump 27 because it is the smaller addend. The sum is 114.
We should start at 87 because it is the larger addend and jump 27 because it is the smaller addend. The sum is 114.
6. How many jumps do you need in order to add 25 + 112?
- 1 ten and 7 ones
- 5 tens and 9 ones
- 2 tens and 5 ones
The smaller addend is 25. It is made up of 2 tens and 5 ones.
The smaller addend is 25. It is made up of 2 tens and 5 ones.
Yes! The smaller addend is 25. It is made up of 2 tens and 5 ones.
7.
Which number line helps you add
107 + 22?
The number line should have a dot over 107 and jump 2 tens and 2 ones. The sum is 129.
Yes! This number line has a dot over 107 and jumps 2 tens and 2 ones. The sum is 129.
The number line should have a dot over 107 and jump 2 tens and 2 ones. The sum is 129.
8. What is 21 + 63?
- 27
- 109
- 84
We should start at 63 because it is the larger addend and jump 21 because it is the smaller addend. The sum is 84.
We should start at 63 because it is the larger addend and jump 21 because it is the smaller addend. The sum is 84.
Good job! We started at 63 because it is the larger addend and jumped 21 because it is the smaller addend. The sum is 84.
9. What number do you start jumping from to add 134 + 26?
- 160
- 134
- 26
You should begin jumping from 134 because it is the larger addend.
Correct! You will begin jumping from 134 because it is the larger addend.
You should begin jumping from 134 because it is the larger addend.
10.
Which number line helps you add
55 + 13?
Yes! This number line has a dot over 55 and jumps 1 ten and 3 ones. The sum is 68.
The number line should have a dot over 55 and jump 1 ten and 3 ones. The sum is 68.
The number line should have a dot over 55 and jump 1 ten and 3 ones. The sum is 68.
Summary
Questions answered correctly:
Questions answered incorrectly: