WHEN WE ARE JOINING ANGLES, WE ____ TO FIND THE MISSING ANGLE.

• ADD

• SUBTRACT

OOPS! MRS. KELLY HAD A TYPO! 

WHAT IS 42 DEGREES + 90 DEGREES?

• 142 DEGREES 

• 132 DEGREES

48 + 90 = 128

• TRUE 

• FALSE

SEPARATING ANGLES MEANS WE ______ TO FIND THE MISSING ANGLE.

• ADD

• SUBTRACT

WHAT IS 100-37?

• 77

• 63

IF WE ARE SOLVING FOR ANGLE DEG, ARE WE JOINING OR SEPARATING? 

• JOINING 

• SEPARATING 

WHICH ANSWER CHOICE SHOULD WE CHOOSE? 

• ANSWER C 

• ANSWER D 

IN THIS PROBLEM, ARE WE JOINING OR SEPARATING? 

• JOINING 

• SEPARATING 

ARE WE JOINING OR SEPARATING IN THIS PROBLEM? 

• JOINING 

• SEPARATING 

WHICH ANSWER CHOICE BEST DESCRIBES OUR SUM?

51+39

• C. 90

• D. 89