This adding tens test for 1st Grade covers adding and subtracting tens within 100 (Common Core 1.NBT.C.4, 1.NBT.C.5, 1.NBT.C.6), with a free PDF to print.
This test has 8 questions and is worth 20 points. Read each question carefully and write your answers in the space. You have about 30 minutes. Use the pictures to help you.
Time and points
About this test
Grade: Grade 1
Chapter: Adding and Subtracting Tens Within 100
Standards: 1.NBT.C.4, 1.NBT.C.5, 1.NBT.C.6
Time: 30 minutes
Total: 20 points
Adding tens test: questions
Question 1 – Tens and ones [2 pts]
Look at the blocks.
Write the number. (1 point)
Write the number that is 10 more. (1 point)
Question 2 – Mystery numbers [2 pts]
10 more than a number is 83. What is the number? (1 point)
What is 10 less than 61? (1 point)
Question 3 – Add [3 pts]
Find each sum.
\(62 + 5\) (1 point)
\(45 + 30\) (1 point)
\(38 + 6\) (1 point)
Question 4 – Subtract tens [3 pts]
The blocks show 90. Four rods and one more are crossed out.
Find \(90 – 50\). (1 point)
Find \(70 – 20\). (1 point)
Find \(80 – 80\). (1 point)
5 rods are crossed out.
Question 5 – Number line [2 pts]
Use the number line to find \(47 + 5\).
Where does the first hop end? (1 point)
What is the sum? (1 point)
First hop: +3.
Question 6 – Missing number [3 pts]
Find the missing number.
\(50 + ? = 80\) (1 point)
\(? + 40 = 90\) (1 point)
\(70 – ? = 20\) (1 point)
Question 7 – Tickets at the fair [3 pts]
Maya sold 24 tickets on Saturday and 30 tickets on Sunday.
Write an equation for the total. (1 point)
How many tickets did she sell in all? (1 point)
On Monday she sold 10 more tickets than on Sunday. How many tickets did she sell on Monday? (1 point)
Question 8 – Hundred chart [2 pts]
Use the chart. The yellow box is 58.
What is 10 less than 58? (1 point)
What is 10 more than 58? (1 point)
The shaded box is 58.
Key facts behind this adding tens test
Key facts
A two-digit number has tens and ones, like 34 = 3 tens and 4 ones.
To add ones, keep the tens and add the ones.
If the ones pass 9, make the next ten first.
10 more or 10 less changes only the tens digit.
To subtract tens, think of tens: 8 tens – 3 tens = 5 tens.
How to use this adding tens test
Time yourself: the test is designed for an average student in 45 minutes. Answer the questions you are sure of first, then come back to the longer ones and check your units.
