Adding and Subtracting Lengths Within 100 Units

What number sentence would you use to find the difference between the lengths of the toothpick and the string?

• 16 - 10 = 6

• 10 - 6 = 4

• 10 + 6 = 16

At the beginning of May the plant was 8 inches tall. It grew 3 inches during May. How long was it at the end of May?

• 5 inches

• 8 inches

• 11 inches

Sonya’s hair is 67 inches long. Her friend Gabby’s hair is 48 inches long. How much longer is Sonya’s hair than Gabby’s hair?

• 115 inches

• 21 inches

• 19 inches

What is the combined width of these two notebooks?

• 13 cm

• 7 cm

• 11 cm

• 12 cm

Fill in the blank

• 5

• 6

• 8

• 0

98-27=

• 71

• 81

• 95

• 65

How much longer is the key than the paper clip?

• 3 cm

• 2 cm

• 4 cm

• 1 cm

79-52=

• 27

• 131

• 37

• 45

What is the total length in feet of all of Ms. Porter's ribbons?

A building is 60 meters tall. A tree near the building is 12 meters tall. How much taller is the building than the tree?

• 39 meters

• 48 meters

• 72 meters

• 12 meters