SUBTRACTION 250. Oral Problems. 1. Mary had 7 peaches, and gave away all but 2; how many peaches did she give away ? 2. A newsboy had 10 papers, and sold all but 2; how many did he sell ? 3. A drover had 400 hogs, and sold all but 100; how many did he sell ? 4. Frank paid 80 dollars for a bicycle, and sold it for 60 dollars ; how much did he lose ? 5. Of the 90 pupils in school 40 are boys; how many 6. How many more days are there in January than in Christmas week ? 7. What is the difference between the values of a 25-cent piece and a 50-cent piece ? 8. How much less than 16 dollars is 7 dollars ? 9. If James had 9 more turkeys he would have 17; how many turkeys has he? 251. In Subtraction we find the difference between two numbers. mainder. 2. Mr. Jones has 40 acres in wheat and 56 acres in corn; how many more acres has he in corn than in wheat ? 3. What is the difference between the length of a railroad that is 879 miles long, and the length of another railroad 358 miles long? 4. From a herd of 938 head of cattle Mr. Franklin shipped 417 head to Chicago ; how many cattle remained in the herd ? 5. A farmer's crop of corn was 786 bushels. He kept 520 bushels for his own use, and sold the rest. How many bushels did he sell ? 6. Find the difference between 362 and 787. 7. A boy had $3.75, and spent $2.25. How much did he have left ? 8. From one million nine hundred eighty-seven thousand six hundred sixty-two, subtract five hundred twenty thousand two hundred one. 9. What number must be added to 3 265 to make 6 596 ? 10. What number subtracted from 76 982 will leave 45 901 ? 11. Find the difference in pounds between a cargo weighing 399 597 lb., and another weighing 287 163 lb. 255. Written Exercises. EXPLANATION. 2 356 Minuend. tracted; changing into units 1 ten of the 5 tens 1437 Subtrahend. of the minuend, the units of the minuend become 16, and the tens of the minuend become 4. Sub 919 Remainder. tract 7 units from 16 units, and place the difference, 9 units, below. II. Subtract the 3 tens of the subtrahend from the 4 tens of the minuend, and place the difference, 1 ten, below. III. From 3 hundreds, 4 hundreds cannot be subtracted ; changing into hundreds 1 thousand of the 2 thousands of the minuend, the hundreds of the minuend become 13, and the thousands of the minuend become 1. Subtract 4 hundreds from 13 hundreds, and place the difference, 9 hundreds, below. IV. Subtract the 1 thousand of the subtrahend from the one thousand of the minuend, and nought remains. |