− 2 1 4 + ( − 3 1 4 ) = -2\ \frac{1}{4}+\left(-3\ \frac{1}{4}\right)= − 2 4 1 + ( − 3 4 1 ) =

− 5 1 2 -5\ \frac{1}{2} − 5 2 1

− 3 4 + 1 5 -\frac{3}{4\ }+\frac{1}{5} − 4 3 + 5 1

− 11 20 -\frac{11}{20} − 2 0 1 1

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Math

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Adding And Subtracting Rational Numbers

Adding and Subtracting Rational Numbers

Authored by Stephanie Fitzgerald

Mathematics

6th - 8th Grade

CCSS covered

Used 67+ times

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8 questions

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

$-\ 3.5\ +\ \left(-4.9\right)$

-1.4

8.4

1.4

-8.4

Answer explanation

Remember the integer rules!

Tags

CCSS.7.NS.A.1C

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

$-\frac{2}{9}+\frac{3}{9}=$

$-\frac{5}{9}$

$\frac{5}{9}$

$-\frac{1}{9}$

$\frac{1}{9}$

Answer explanation

The signs are different, so FIND THE DIFFERENCE.
3-2 = 1. Since 3 is greater and positive, the answer is positive.

Tags

CCSS.7.NS.A.1C

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

$-2\ \frac{1}{4}+\left(-3\ \frac{1}{4}\right)=$

$-5\ \frac{1}{2}$

$1$

$5\ \frac{1}{2}$

$5\ \frac{2}{4}$

Tags

CCSS.7.NS.A.1C

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

$-0.6\ +\ \left(-2.5\right)=$

$-1.9$

$1.9$

$-3.1$

$3.1$

Tags

CCSS.7.NS.A.1C

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

$-\frac{3}{4\ }+\frac{1}{5}$

$\frac{11}{20}$

$-\frac{11}{20}$

$-\frac{2}{9}$

$\frac{19}{20}$

Tags

CCSS.7.NS.A.1C

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$-3+\left(7.5\right)=$

$10.5$

$7.2$

$4.5$

$-4.5$

Tags

CCSS.7.NS.A.1C

MULTIPLE CHOICE QUESTION

1 min • 1 pt

$32.8\%\ +\ 0.9\%$

32.89%

41.8%

33.7%

Tags

CCSS.5.NBT.B.7

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Adding and Subtracting Rational Numbers

− 3.5 + (−4.9)-\ 3.5\ +\ \left(-4.9\right)− 3.5 + (−4.9)

Remember the integer rules!

−29+39=-\frac{2}{9}+\frac{3}{9}=−92​+93​=

The signs are different, so FIND THE DIFFERENCE.3-2 = 1. Since 3 is greater and positive, the answer is positive.

−2 14+(−3 14)=-2\ \frac{1}{4}+\left(-3\ \frac{1}{4}\right)=−2 41​+(−3 41​)=

−0.6 + (−2.5)=-0.6\ +\ \left(-2.5\right)=−0.6 + (−2.5)=

−34 +15-\frac{3}{4\ }+\frac{1}{5}−4 3​+51​

−3+(7.5)=-3+\left(7.5\right)=−3+(7.5)=

32.8% + 0.9%32.8\%\ +\ 0.9\%32.8% + 0.9%

81.2% - 34.5%

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$-\ 3.5\ +\ \left(-4.9\right)$

$-\frac{2}{9}+\frac{3}{9}=$

The signs are different, so FIND THE DIFFERENCE.
3-2 = 1. Since 3 is greater and positive, the answer is positive.

$-2\ \frac{1}{4}+\left(-3\ \frac{1}{4}\right)=$

$-0.6\ +\ \left(-2.5\right)=$

$-\frac{3}{4\ }+\frac{1}{5}$

$-3+\left(7.5\right)=$

$32.8\%\ +\ 0.9\%$