Mathematics
Grade 1
15 min
Adding 9
Adding 9
What you'll learn
- Solve addition problems with 9 and a single-digit number (0-9) to find the sum, and record the answer.
- Explain how adding 9 is like adding 10 and taking 1 away.
- Identify number sentences (e.g., 9 + 3 = ?) that show adding 9 to a single-digit number.
- Apply the 'make a ten' strategy to quickly add 9 to numbers 1 through 9 without using manipulatives in at least 3 out of 5 problems.
Tutorial Preview
1
What is 4 + 9?
2
What is 6 + 9?
3
What is 9 + 8?
Sample Practice Questions
Easy
What is 2 + 9?
0.10
1.12
2.9
3.11
Easy
What is 3 + 9?
0.10
1.11
2.13
3.12
Easy
What is 9 + 4?
0.12
1.14
2.15
3.13
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Frequently asked questions
What grade level is "Adding 9"?
Adding 9 is a Grade 1 Mathematics lesson on ExcelOS.
What will I learn in Adding 9?
You'll be able to: Solve addition problems with 9 and a single-digit number (0-9) to find the sum, and record the answer; Explain how adding 9 is like adding 10 and taking 1 away; Identify number sentences (e.g., 9 + 3 = ?) that show adding 9 to a….
Is "Adding 9" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Adding 9?
This lesson includes 28 practice questions across multiple difficulty levels, each with instant feedback and explanations.