Adding and Subtracting Within 100

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

12 + 3 = ?

• 13

• 14

• 15

• 16

Miss. Velasquez measured the widths of the two notebooks shown in the diagram.

What is the combined width of these two notebooks?

• 13 cm

• 7 cm

• 11 cm

• 12 cm

Lucy had a piece of fabric that was 83 meters long. She cut off a 29 meter piece of fabric to make a tent. How many meters are left?

• 42

• 1,277

• 112

• 54

Peace finished 3 math problems for morning work. She finished 5 more during math class and 6 more for homework. How many math problems did she complete in all?

• 11

• 8

• 14

• 2

What is 4 more than 25?

• 24

• 29

• 35

• 15

79-52=

• 27

• 131

• 37

• 45

Lilly finished 3 math problems for morning work. She finished 5 more during math class and 6 more for homework. How many math problems did she complete in all?

• 11

• 8

• 14

• 2

98-27=

• 71

• 81

• 95

• 65

98-43=

• 65

• 72

• 55

• 45