Lesson XXXI

Subtracting with the number SEVEN.  Story problems with candy, calves, books, lemons, marbles,… and… I wonder what scared off those birds and made them fly away!


RAY’S NEW PRIMARY ARITHMETIC.

LESSON XXXI.

7  from  7  leaves  0              5  from  12  leaves  7

1  from  8  leaves  7              7  from  12  leaves  5

7  from  8  leaves  1              6  from  13  leaves  7

2  from  9  leaves  7              7  from  13  leaves  6

7  from  9  leaves  2              7  from  14  leaves  7

3  from  10  leaves  7              8  from  15  leaves  7

7  from  10  leaves  3              7  from  15  leaves  8

4  from  11  leaves  7              9  from  16  leaves  7

7  from  11  leaves  4              7  from  16  leaves  9

—————–

1. Charles had  8  cents, and spent  7  cents for candy: how much had he left?

SOLUTION.–Charles had left  8  cents less 7 cents, which is  1  cent.

2. A man bought a calf for  9  dollars, and paid  2  dollars down: how much remained unpaid?

3. Ella bought  10  oranges, and gave her mother  7:  how many had she left?

4. A book, which cost  7  cents, was sold for  11  cents: how much was gained?

5. Thomas had  12  marbles, and lost  5  of them: how many had he left?

6. If  7  lemons be taken from  13  lemons, how many lemons will remain?

7. Mary is  14  years old, and Anna is  7:  how much older is Mary than Anna?

8. A boy counted  15  birds on a tree: some of them flying away, he counted  8  remaining: how many flew away?

9. Seven and how many make  15 ?    Nine and how many make  16 ?

(34)

Rays woodcutborder


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Go to Review Lessons XXVIII – XXXI

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