The third of three REVIEW lessons on Addition and Subtraction in *Ray’s Primary Arithmetic*.

This the *final* lesson in the SUBTRACTION section of the book.

Get ready for some fun and challenging problems!

RAY’S NEW PRIMARY ARITHMETIC.

LESSON XXXVII.

1. Begin with 20, and subtract by 2’s to 0.

*SOLUTION.– 20, 18, 16, 14, 12, 10, 8, 6, 4, 2, 0.*

2. Begin with 18, and subtract by 3’s to 0.

3. Begin with 20, and subtract by 4’s to 0.

4. Begin with 20, and subtract by 5’s to 0.

5. Begin with 18, and subtract by 6’s to 0.

6. Francis has 10 cents in two pockets: there are 4 cents in one: how many in the other?

7. I think of two numbers that together make 8: one of them is 5: what is the other?

8. Mary had 11 apples: she gave 4 to Lucy, and 5 to Nancy: how many had she left?

*SOLUTION.–Mary gave away 4 apples and 5 apples, which are 9 apples; then, she had left 11 apples less 9 apples, which are 2 apples.*

9. Emma had 15 cents: she paid 5 cents for thread, 2 cents for tape, and 3 cents for needles: how much had she left?

10. I have 10 cents in one hand, and 5 in the other: if I take 3 cents from each hand, how many cents will I then have in both hands?

11. Three numbers together make 18: the first number is 9, the second is 4: what is the third?

12. I bought 16 oranges, and gave 6 to James: Henry afterwards gave me 8 more: how many oranges had I then?

13. James has 8 marbles, and John has 7; Henry has 10 less than James and John together: how many marbles has Henry?

14. Albert bought 10 apples: he sold 3, and ate 2: how many apples had he left?

(40)

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