How much did he

last summer by mowing lawns.

earn?

7. James had a habit of saving 1⁄2 of all he earned. How much did he put in his bank last year?

2. If you subtract 5 from a number ending in 9, what is the last figure of the answer? If you subtract 7?

3. If you subtract 6 from a number ending in 5, what is the last figure of the answer? If you subtract 7? If you subtract 8?

4. Subtract 5 from 23, 33, 43, 83, 93, calling results only.

5. Subtract 6 from 11, 21, 31, 41, 51.

6. Subtract by 4's from 40 to 0; by 7's from 70 to 0.

36. Practice in Addition and Subtraction

First add and then subtract.

See how many of the

1. On a certain day an automobile license bureau issued 35 license plates, beginning with the number 4000. You may write the numbers on the plates given out that day.

2. On the same day this automobile license bureau began numbering trucks at 550. Write the license plate numbers for the first 20 trucks.

3. Tell what change you would receive from a dollar with:

A 57-cent purchase.

A 35-cent purchase.

A 70-cent purchase.

A 48-cent purchase.

4. Find the amount of a grocery bill for two days:

5. The children in the first three grades of Oak Grove School had a party. There were 38 children in the first grade, 36 children in the second grade, and 35 in the third grade. How many children were invited to the party?

6. Jane has saved $3.28. She wishes to buy a French doll which costs $9.00. How much more money must she save?

7. A man paid $255 for a horse and wagon. If the horse was valued at $190, what was the value of the wagon?

8. Find the total cost of each of the following purchases:

9. A round-trip ticket between two towns costs $8.10, which is $3.55 more than the fare one way. What is the fare one way?

10. A boy earned $15.00 last month. If he spent $9.65, how much money did he save?

11. James has saved $20.75, William has saved $19.00, and Tom has saved $25.10. How much money have the three boys saved?

12. A dealer buys coal at $6.75 a ton and sells it at $8 a ton. How much does he gain on a ton?

13. First add; then subtract:

876 903

289 274

630 725 840 700 431
149 346 205

268 199

38. Speed Tests

Your teacher will time you for each of these tests which you are to work in four minutes or less.

Copy and subtract:

3. 74 83 61 85 37
19 29 39

49

19

4.

39. The Multiplication Table of Twos

You have already built the table of twos (see page 36). Study the one given below.

1. See if you can write the table without looking at the book.