Choose the Greater Sum of Rational Numbers
Written by Adi Ackerman, Head Teacher
"Choose the Greater Sum of Rational Numbers" 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 rational numbers can use it too, and an older student can use it as a short review.


7th grade math worksheet: write each sum of a decimal and a fraction as a decimal, such as (-8.2) + (-9/10), and circle the greater. Answer key included. Part of our add and subtract rational numbers collection. Aligned to Common Core standards.
How do I use this worksheet?
Use Add and Subtract Rational Numbers in Three Forms after students have practiced fractions and decimals separately. Assign Additive Inverses That Make Zero for the concept and the profit and loss sheet to apply it.
What students will practice
- Students will add a decimal and a fraction with positive or negative signs.
- Students will write each sum as a decimal.
- Students will circle the greater sum in each pair.
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 add and subtract rational numbers worksheet?
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Use Add and Subtract Rational Numbers in Three Forms after students have practiced fractions and decimals separately. Assign Additive Inverses That Make Zero for the concept and the profit and loss sheet to apply it.
What does this worksheet teach?
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Write each sum of a decimal and a fraction as a decimal, such as (-8.2) + (-9/10), and circle the greater. The directions on the page read: Find both sums in each pair and write each one as a decimal. Then circle the greater sum. An answer key is included.
Can I use this add and subtract rational numbers worksheet for homeschool or classroom?
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Yes, both. We made it for 7th grade rational numbers, 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.
How do you add a fraction and a decimal?
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Change both numbers to the same form, usually decimals, then add using the sign rules. Add and Subtract Rational Numbers in Three Forms has students write each answer as a decimal.
What is an additive inverse?
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The additive inverse of a number has the same size and the opposite sign, so the two numbers add to 0. The inverse of -14.9 is 14.9. Additive Inverses That Make Zero practices this with decimals, fractions and mixed numbers.
How do you use negative numbers for profit and loss?
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Use a negative number for money paid out or a loss and a positive number for money earned. Profit and Loss With Rational Numbers asks students to write an expression for each snack stand problem and find the profit or loss.
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Worksheet Details
| Grade | 7th Grade |
| Subject | Math |
| Topic | Rational Numbers |
| Standard | 7.NS.A.1.B |
| Pages | 1 page |
| Difficulty | Medium |
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