Daniel recorded the number of
glasses of juice he sells in his neighborhood each day in this tally chart. How many more glasses were sold on
Thursday than Friday and Monday combined?
We know the tally chart tells us
the number of glasses of juice Daniel sells in his neighborhood each day. How many glasses of juice did he
sell on Monday? We know that this is how we show
five using tally marks. We know that five plus two gives us
a total of seven. How many did he sell on
Tuesday? We’ve got two fives plus four more,
which makes 14. On Wednesday, there are three fives
plus one more: five, 10, 15, 16. He sold a lot of juice on Thursday:
five, 10, 15, 20, and one more makes 21. On Friday, he sold five, 10 glasses
The question asks us how many more
glasses of juice were sold on Thursday than on Friday and Monday combined. To combine the number of glasses he
sold on Friday and Monday, we need to add these two totals together. On Friday, Daniel sold 10 glasses
of juice. And on Monday, he sold seven. We know that 10 plus seven is
17. We know that 21 glasses of juice
were sold on Thursday.
Now, we need to find the difference
between 21 and 17. To find the difference, we could
count forward starting at 17 until we reach 21. One, two, three, four. The difference between 17 and 21 is
four. Four more glasses of juice were
sold on Thursday than Friday and Monday combined. We read the information in the
tally chart and used it to help us solve the problem.