Grade 1 Math · Addition Within 20
Build addition fluency with five 10-question practice tests covering number bonds, make-a-ten strategies, missing addends, and simple word problems.
These Grade 1 math practice tests help students add within 20 using counting on, number bonds, doubles, make-a-ten strategies, equations, and simple story problems. Each mini test contains 10 multiple-choice questions with answers and explanations.
Complete one 10-question test at a time. Encourage students to draw counters, use a number line, or break an addend apart when a sum is difficult. Open the solution after answering, then explain the strategy before moving to the next test.
For more Grade 1 math practice, return to the Grade 1 Math category.
5. Test
A 10-question Grade 1 practice test on addition within 20, with answers and explanations.
Choose one answer for each question. Open the solution after answering to see the correct answer and explanation.
Please select an answer first.
Correct answer: A
The correct answer is Make a ten: 8 + 2 + 4.
Break 6 into 2 and 4. Then 8 + 2 = 10 and 10 + 4 = 14.
Please select an answer first.
Correct answer: B
The correct answer is 9 + 9.
A doubles fact adds the same number twice. 9 + 9 is a doubles fact.
Please select an answer first.
Correct answer: C
The correct answer is 12.
A double of 6 is 12.
Please select an answer first.
Correct answer: D
The correct answer is 9 + 8.
9 + 8 = 17, which is greater than 15.
Please select an answer first.
Correct answer: A
The correct answer is 20.
One group of 10 plus another group of 10 equals 20.
Please select an answer first.
Correct answer: B
The correct answer is 8 + 8.
8 + 8 = 16.
Please select an answer first.
Correct answer: C
The correct answer is 19.
12 + 7 = 19.
Please select an answer first.
Correct answer: D
The correct answer is 8 + 9.
8 + 9 = 17, which is greater than the other sums.
Please select an answer first.
Correct answer: A
The correct answer is 17.
Add 2 to 15: 16, 17.
Please select an answer first.
Correct answer: B
The correct answer is 11 + 8 = 19.
11 and 8 combine to make 19.
It means joining two numbers so that their sum is 20 or less. Students practice facts such as 8 + 6 and 12 + 7.
Each mini test contains 10 multiple-choice questions. The complete page includes five mini tests and 50 questions in total.
A make-a-ten strategy breaks an addend apart so one number reaches 10 first. For example, 8 + 6 can become 8 + 2 + 4, which equals 14.
