65 3 195 3 × 5 ones = 15 ones, or 1 ten and 5 ones. Write the 5 ones in ones' place. 3×6 tens = 18 tens; 18 tens + the 1 ten of the 15 ones=19 tens. The answer is 195. 66 We think: "3 times 5=15; 3 times 6=18; 18+1=19." Product 195. The result in multiplication is called the product. PRACTICAL PROBLEMS 1. If a clerk earns $ 44 a month, how much will he earn in 2 months? 2. How much will 2 lb. of tea cost at 40 a pound! 3. A girl is 14 years old. Her brother is twice as old. How old is her brother? 4. If molasses costs 14 cents a pint, how much will 2 pints cost? Find the cost of: 5. 2 pieces of soap at 10 cents apiece. 6. 2 pounds of butter at 24 cents a pound. 7. 2 dozen lemons at 12 cents a dozen. 8. 2 yards of muslin at 11 cents a yard. 9. How many inches are there in 3 feet? 10. How far does an automobile travel in 3 hours if it travels 21 miles an hour? 11. Tom bought 3 notebooks at 16 cents each. How much did they cost? 12. Harry sold 3 dozen eggs at 30 cents a dozen. How much did he receive for them? 13. Find the cost of 3 rugs at 24 dollars each. 14. Three girls each bought ice cream. It cost 15 cents a plate. How much did the 3 plates of ice cream cost? 1. How many halves are there in a circle? in a square? in a line? 2. How many halves are there in a unit? 3. How many fourths are there in a unit? 4. One half is equal to how many fourths? 5. Two halves are equal to how many fourths? 6. How much greater is one half than one fourth? 7. One half and one fourth are how many fourths? 8. How many halves are there in two units? 9. How many thirds are there in one unit? in two units? 10. Two thirds and one third are how many thirds? 11. Three thirds minus two thirds are 3 1 333 DRAWING TO SCALE Measure carefully with your ruler and draw : 1. An envelope 2 in. wide and 6 in. long. 2. A blotter 3 in. wide and 6 in. long. 3. A page 4 in. wide and 6 in. long. 4. A square 3 in. on a side. 5. A square 4 in. on a side. 6. The top of a box 5 in. on a side. 7. A picture 4 in. by 6 in. With one inch representing a foot, draw figures to represent : 8. A rug 8 ft. long and 3 ft. wide. NOTE.-As 1 in. stands for 1. ft., 8 in. stand for 8 ft. and 3 in. for 3 ft. Draw an oblong 8 in. long and 3 in. wide. 9. A hallway 10 ft. long and 4 ft. wide. 10. A table cover 7 ft. by 4 ft. 11. A window glass 9 ft. by 4 ft. 12. The glass for a picture 3 ft. by 2 ft. With one inch representing a yard, draw figures to represent: 13. A room 6 yards by 4 yards. 14. A porch floor 8 yards long and 2 yards wide. DIVIDING BY 2 1. Into how many groups of 2 each may 10 be divided? 10 divided by 2 equals 5, written 2.4÷2;6÷2;8÷2;102; 12+2;142; 16 +2. 3. 2)8 2)10 2)6 2)12 2)14 2)16 2)18 4. Divide 24 by 2. 2 is contained in 2 tens, 1 ten time; write 2)24 12 1 in tens' place. 2 is contained in 4 ones, 2 times; write 2 in ones' place. The answer is 12. 8. How many quarts are there in 44 pints? 9. Arnold counted 84 eggs by 2's. How many times did he take out 2 eggs? 10. Milton uses 2 pages of his notebook for each day's work. How many days can he use a notebook containing 48 pages? 11. Divide by 2:244;462;684;240;408; 800. |