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Addition - Missing Value, To Tens (Level 2)

This math topic focuses on practicing finding missing values in addition problems that summarize to tens. It hones the ability to add 1 and 2-digit integers by having students determine the unknown addend that achieves a specific sum. The exercises range from basic to slightly more challenging puzzles, ensuring the learner understands integer addition up to two digits. Each problem offers multiple-choice answers, assisting in quicker validation of the learner's solutions.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Add. Missing Value, To Tens

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Solve for the missing value

38+?=5038 + ? = 50

Addition - Missing Value, To Tens Worksheet

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Math worksheet on 'Addition - Missing Value, To Tens (Level 2)'. Part of a broader unit on 'Addition and Subtraction of Integers - 1 and 2 Digit' Learn online: app.mobius.academy/math/units/addition_and_subtraction_integers_1_and_2_digit/
1
Solve for the missing value
A LaTex expression showing 30 + ? = 40
a
10
b
6
c
0
d
120
e
600
f
1
2
Solve for the missing value
A LaTex expression showing ? + 32 = 40
a
0
b
12
c
10
d
8
e
6
f
600
3
Solve for the missing value
A LaTex expression showing ? + 35 = 50
a
18
b
13
c
10
d
11
e
15
f
16
4
Solve for the missing value
A LaTex expression showing ? + 31 = 40
a
6
b
1
c
9
d
11
e
13
f
8
5
Solve for the missing value
A LaTex expression showing 35 + ? = 50
a
15
b
12
c
0
d
170
e
18
f
1,100
6
Solve for the missing value
A LaTex expression showing 21 + ? = 50
a
27
b
32
c
3,200
d
310
e
29
f
24
7
Solve for the missing value
A LaTex expression showing ? + 13 = 20
a
8
b
7
c
2
d
0
e
6
f
5