More/Less
Mental Math
Addition
Subtraction
Word Problems
100

10 more than 78 is ___

88

100

30 + 25 = ___

55

100

48 + 18 = ___

66

100

81 - 34 = ___

47

100

38 markers were in the bin.  Chase added the 43 markers that were on the floor to the bin.  How many markers are in the bin now?

There are 81 markers in the bin. 

200

10 less than 37 is ___

27

200

60 + 38 = ___

98

200

108 + 37 = ___

145

200

77 - 58 = ___

19

200

Rose has 34 photos in a photo album and 41 photos in a box.  How many photos does Rose have?

Rose has 75 photos.

300

10 more than 126 is ___. 

136

300

68 - 40 = ___

28

300

149 + 38 = ___

187

300

187 - 49 = ___

138

300

Halle has two ribbons.  The blue ribbon is 58 cm.  The green ribbon is 38 cm longer than the blue ribbon. 

a. How long is the green ribbon?

b. Halle uses 67 cm of green ribbon to wrap a present.  How much green ribbon is left?

a. The green ribbon is 96 cm long. 

b. There is 29 cm of green ribbon left.

400

10 less than 181 is ___. 

171

400

70 - 26 = ___

56

400

177 + 23 = ___

200

400

125 - 87 = ___

38

400

Forty-six birds sat on a wire. Some flew away, but 29 stayed.  How many birds flew away?  

17 birds flew away.

500

74 is ____ than 64 

10 more 

500

60 + 70 = ___

130

500

38 + 22 + 75 = ___

135

500

200 - 49 = ___

151

500

Ian bought a pack of 47 water balloons. 19 were red, 16 were yellow, and the rest were blue.  How many water balloons were blue?

12 balloons were blue.