Adding and Subtracting Up To

23 + (-19)

• 42

• -42

• 4

• -4

-97 + (-3)

• -100

• 100

• -94

• 94

-97 + 3

• 100

• -100

• -94

• 94

Using additive inverse, write this problem as an addition problem.

-22 - (-7)

• -22 + 7

• -22 + (-7)

• 22 + 7

• 22 + (-7)

30 + 17 =

• 47

• 50

• 58

• 60

How did you solve 30 + 17?

• I used a number line

• I used a 120 number chart

• I lined them up in place value columns and added

• I counted up in my head or used my fingers

71 + 9 =

How did you solve 71 + 9?

• I used a number line

• I used a 120 number chart

• I lined up my numbers in place value columns and added

• I counted up in my head or used my fingers

58 - 15 =

• 74

• 42

• 34

• 43

25 + 52 =