Adding & Subtracting Signed Decimals

When adding decimals with the same sign you.....

• subtract and take the sign of the larger number
• add the opposite
• add and keep the sign
• subtract and keep the sign

Tags

CCSS.5.NBT.B.7

When adding decimals with different signs you....

• subtract and take the sign of the larger number
• add the opposite
• add and keep the sign
• subtract and keep the sign

Tags

CCSS.7.NS.A.1C

-23.4 - 3.4= 

• -20
• 26.8
• -26.8
• 20

Tags

CCSS.7.NS.A.1C

-6.5 + (-0.5) 

• -7
• 7
• 6
• -6

Tags

CCSS.7.NS.A.1C

34.5 + (-7)

• -41.5
• 41.5
• -27.5
• 27.5

Tags

CCSS.7.NS.A.1C

-7.8 + (-0.8)

• 8.6
• -8.6
• 7
• -7

Tags

CCSS.7.NS.A.1C

-40 + 15.05= 

• 55.05
• 24.95
• -24.95
• 14.65

Tags

CCSS.7.NS.A.1C

-6.25 + 7

• -0.75
• 0.75
• 13.25
• -13.25

Tags

CCSS.7.NS.A.1C

-3.133 + -0.24

• 3.373
• 2.893
• -3.373
• -2.893

Tags

CCSS.7.NS.A.1C

A rock climber that is 0.74 miles above sea level ascends 0.18 miles and then descends 0.8 miles.  Which represents the location of the rock climber compared to sea level?

• .12
• 1.72
• 1.36
• -.24

Tags

CCSS.7.NS.A.1C