Adding and Subtracting Decimals and Fractions

2.2 + (-6.5)

• 0.6

• -6.7

• -4.3

• -2.3

Answer explanation

Yes! this is just like subtracting!

Tags

CCSS.5.NBT.B.7

 $-2.5\ +\ -3.9$  

• -3.72

• -6.4

• -9.1

• 0.7

Answer explanation

Yes! Same sides add together and keep the sign

Tags

CCSS.5.NBT.B.7

-7 + 4.9

• -4

• -2.4

• -2.1

• 1.1

Answer explanation

start positive and move negative

Tags

CCSS.5.NBT.B.7

 $\frac{-3}{2}\ +\ \frac{-7}{5}$  

• the common denominator is 5

• the common denominator is 2

• the common denominator is 10

• I don't need a common denominator to solve this

Answer explanation

When adding and subtracting fractions you MUST have a common denominator

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $-\frac{3}{2}+\left(-\frac{7}{5}\right)=$  

•  $-\frac{49}{10}$  

•  $-\frac{12}{5}$  

•  $-\frac{27}{10}$  

•  $-\frac{29}{10}$  

Answer explanation

Remember when finding a common denominator you have to multiply BOTH the numerator and the denominator!

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

 $\frac{3}{7}++\left(-\frac{3}{2}\right)=$  

•  $-\frac{15}{14}$  

•  $-\frac{11}{4}$  

•  $-\frac{5}{2}$  

•  $-\frac{17}{14}$  

Answer explanation

An improper fraction is NOT the simplest form

Tags

CCSS.5.NF.A.1

 $6.90\ +\ 1.60=$  

• 8.50

• 14.60

• 16.50

• 5.10

Tags

CCSS.5.NBT.B.7

 $-0.9\ -\ 0.2=$  

• 5.1

• 5.67

•  $-0.9$  

•  $-1.1$  

Tags

CCSS.5.NBT.A.3

CCSS.5.NBT.B.7

 $-0.1\ -\ \left(-6.7\right)$  

• 6.6

• 6

• 0.5

• 6.8

Tags

CCSS.5.NBT.B.7

 $\frac{5}{6}-\frac{4}{3\ }=$  

•  $-\frac{1}{2}$  

•  $-\frac{3}{2}$  

•  $-\frac{1}{5}$  

•  $-\frac{1}{3}$  

Tags

CCSS.5.NF.A.1