Integer Addition Cross-Sum Squares
Written by Adi Ackerman, Head Teacher
"Integer Addition Cross-Sum Squares" is written for 7th Grade (Ages 12-13), and it covers Common Core 7.NS.A.1.B. A 6th grader who is already steady on math puzzles can use it too, and an older student can use it as a short review.
7th grade math worksheet: fill empty boxes in integer squares so every row and column adds to its shaded sum. Answer key included. Part of our number puzzles collection. Aligned to Common Core standards.
How do I use this worksheet?
Choose by skill, such as ladders for integer sums or equation puzzles for algebra. The partner game works well for a pair or a small group.
What students will practice
- Students will add signed integers across rows and down columns.
- Students will find a missing integer that makes a sum correct.
- Students will check each answer against both its row and its column.
Curriculum Links
Common Core State Standards
The Number System · 7th Grade
Standard: Understand p + q as the number located a distance |q| from p, in the positive or negative direction depending on whether q is positive or negative. Show that a number and its opposite have a sum of 0 (are additive inverses). Interpret sums of rational numbers by describing real-world contexts.
View all 7.NS.A.1.B worksheets →Find this in the curriculum
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FAQ
How do I use this number puzzles worksheet?
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Choose by skill, such as ladders for integer sums or equation puzzles for algebra. The partner game works well for a pair or a small group.
What does this worksheet teach?
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Fill empty boxes in integer squares so every row and column adds to its shaded sum. The directions on the page read: The shaded boxes show the sum of each row and each column. Fill in every empty box with the signed integer that makes all of those sums correct. An answer key is included.
Can I use this number puzzles worksheet for homeschool or classroom?
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Yes, both. We made it for 7th grade math puzzles, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.
What are number puzzles?
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Puzzles where the numbers follow a pattern or rule, such as ladders, pyramids and magic squares.
What skills do they cover?
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Integer and decimal sums, signed fraction products and quotients, and two-step equations, plus a coordinate reflection picture and a nonogram.
Do they have answer keys?
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15 of the 16 do. The Signed Number Dots and Boxes Game is a partner game and has none.
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Worksheet Details
| Grade | 7th Grade |
| Subject | Math |
| Topic | Math Puzzles |
| Standard | 7.NS.A.1.B |
| Pages | 1 page |
| Difficulty | Medium |
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