This math topic focuses on finding missing values in addition equations involving two-digit numbers. Learners practice solving problems where either addend or the sum is unknown. Examples include equations like "71 + ? = 157" and "? + 73 = 153." The equations belong to a broader unit on the addition and subtraction of integers using one and two-digit numbers. Each question offers multiple-choice answers to assess understanding and strengthen integer operation skills.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Practice:
Add. Missing Value, 2 Digit, 1 Number
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
Solve for the missing value
Addition - Missing Value, 2 Digit, 1 Number Worksheet
| Math worksheet on 'Addition - Missing Value, 2 Digit, 1 Number (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
| 55 |
b
| 51 |
c
| 56 |
d
| 490 |
e
| 5,500 |
f
| 52 |
2
| Solve for the missing value |
a
| 2,700 |
b
| 250 |
c
| 2 |
d
| 24 |
e
| 19 |
f
| 26 |
3
| Solve for the missing value |
a
| 10 |
b
| 88 |
c
| 1 |
d
| 93 |
e
| 99 |
f
| 97 |
4
| Solve for the missing value |
a
| 44 |
b
| 34 |
c
| 42 |
d
| 47 |
e
| 41 |
f
| 45 |
5
| Solve for the missing value |
a
| 19 |
b
| 0 |
c
| 12 |
d
| 15 |
e
| 10 |
f
| 14 |
6
| Solve for the missing value |
a
| 47 |
b
| 4,900 |
c
| 45 |
d
| 4,100 |
e
| 0 |
f
| 5 |
7
| Solve for the missing value |
a
| 78 |
b
| 790 |
c
| 81 |
d
| 92 |
e
| 82 |
f
| 79 |