Question

Marie has 231 toothpicks in one box and 175 toothpicks in another box. She uses 319 toothpicks to make a bridge. How many toothpicks does she have left

Answer 1

87 toothpicks

Explanation:

If Marie has 231 toothpicks in one box and 175 in the other, you can add them together which would get:

231

+ 175

_________

406

If Marie uses up 319 toothpicks, then you would have to subtract the 319 toothpicks from the 406 toothpicks in order to see how much is left:

406

- 319

________

87

which would leave you with 87 toothpicks left!