CHAPTER II MULTIPLICATION – SHORT DIVISION – REVIEWS — SIMPLE MEASURES MULTIPLICATION 170. Oral Questions. 1. Rose had 2 oranges, and Mary had twice as many oranges as Rose had; how many did Mary have ? 2. Ida had 3 pears, and Kate had 3 pears; how many did both have ? 3+3= ? How many are twice 3? 3. How many pages are on 3 leaves ? 4. How many are 3 times 2? 5. John had 4 marbles and George had twice as many; how many marbles did George have? 4+4=? 6. If you have 4 pockets with 2 marbles in each, how many marbles do you have ? 7. If you have 2 pockets with 4 marbles in each, how many marbles do you have ? 71. The sign of Multiplication is X. It is read “ times,” or “multiplied by.” 2x $5 is read, Two times five dollars. 72. Written Exercises. 13 13 (Multiplicand] Multiply 13 by 2. +13 2 [Multiplier7 26 26 [Product] 2 times 3 are 6. Write the 6 under the multiplier in the units' place. 2 times 1 are 2. Write the 2 in the tens' place. 13+13=26; or 2 x 13=26. 1. 24 2. 3. 34 5% 174. Oral Questions. 1. How many pages are on 4 leaves ? 2+2+2+2=? How many are 4 times 2 ? 2. How many cents are in 2 nickels? 5+5=? How many are twice 5? 3. How many pages are on 5 leaves ? 2+2+2+2+ 2= ? How many are 5 times 2 ? 4. How many work-days are in 2 weeks? 6+6=? How many are twice 6 ? 5. How many sleeves do 6 coats have ? Six twos make how many? How many are 6 times 2 ? 6. How many days are there in 2 whole weeks? How many are twice 7 ? 7. How many wheels do 7 carts have ? Seven twos added together make how many? How many are 7 times 2? 76. Written Problems. 1. There are 3 horses in the stable, and twice as many in the pasture; how many horses in all ? How many are ? <3 added to 3 ? 2. There are 2 cows in the pasture, and 3 times as many in the lot; how many cows in all ? 2+3x2= ? 3. James has 4 marbles, and Tom has twice as many; how many marbles do both boys have ? 177. Liquid Measure. 2 pints = 1 quart. QUAR 4. A cow gave 7 quarts of milk ; how many pints did she give? 1 qt. = 2 pt. 7 qt. = 7x2 pt. 5. A man sold 5 gallons of milk; how many quarts did he sell ? 1 gal. = 4 qt. 5 gal. =5x4 qt. 6. How many pints are in 4 quarts and 1 pint? 1+ 2x4=? 7. A cart has 2 wheels, a wagon has twice as many wheels as a cart, and a freight car has twice as many wheels as a wagon ; how many wheels do all three have ? 78. Oral Problems. 1. Mr. Brown gave 2 bushels of corn to a poor man, and gave 4 times as many bushels to another; how many bushels of corn did he give in all ? 2+4x2= ? 2. Lewis wrote 6 letters, Mary wrote 2, and James wrote twice as many as Mary; how many letters did all write ? 3. In the stable there are 2 white horses, and twice as many black ones; in the pasture there are 14 horses; how many more horses are in the pasture than in the stable? 4. John walked 6 miles one day, and twice as many miles the next day; how many miles did he walk in the 2 days ? 5. One flag has 7 red stripes and 6 white stripes; how many red stripes do 2 flags have? How many white stripes do 2 flags have? How many stripes of both colors do 2 flags have? 6. If a shoemaker can make 2 pairs of shoes in 1 day, how many pairs can he make in 8 days ? How many shoes can he make in 3 days? 7. Tom has 8 pecans, and Will has twice as many as Tom ; how many has Will? How many do both boys have? 8. Lee had 3 fine ducks; he let James have each duck for 4 pigeons; how many pigeons did he get for his ducks? 4+4+4=? How many pigeons are 3 times 4 pigeons ? 9. Fred spent 5 cents for a pen, and twice as much for an inkstand ; how much did he spend for both ?. 10. George walks 2 miles to school; how far does he walk in 3 days going to and coming from school ? |