Square Measure-Exercise 322. 1. How many square ft. in 1 sq. yd.? 2. How many square inches in 1 sq. ft.? TABLE OF SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) Written Problems 2 323. 1. How many square inches are there in sq. ft.? In 3 sq. ft.? 2. The page of a stamp album is 10 in. long and 8 in. wide. The page is divided into squares 1 in. on each side. How many of these squares are there on one page? 3. A baseball diamond is almost a square, 90 ft. on each side. What is the area in square feet? 4. If the baseball diamond is a square, 90 ft. on each side, what is the area in square yards? 5. If a baseball diamond is about 90 ft. on each side, how many yards must a player travel to make a home run? 6. An athletic field, in the form of a rectangle, is 220 yd. long and 100 yd. wide. How many square yards in the field? 7. What is the length of the perimeter of a field 220 yd. by 100 yd.? 8. The school playground is a rectangle 100 yd. long. Its area is 18,600 sq. yd. What is the width? 9. A strawberry bed is a rectangle 30 ft. long and 21 ft. wide. How many feet of chicken wire are required to fence in the bed? 10. A sign painter has an order to paint a rectangular sign board, 5 yd. long and 2 yd. wide. He paints a narrow black border. What is the length of the border? What is the area of the sign? 11. The foundation of a house is a rectangle 24 ft. by 84 ft. Find the area in square feet. In square yards. 12. The rectangular floor of a tent is 15 ft. by 18 ft. How many square feet in the floor of the tent? 13. On the floor of this tent there are 2 rectangular cots, each 3 ft. by 6 ft., a table 2 ft. square, and 4 chairs, each covering 1 sq. ft. of space. How much unoccupied space is there? 14. A football field is a rectangle 330 ft. long and 160 ft. wide. What is the area in square feet? 15. How many yards long is this field? If lines are drawn across the field at intervals of 5 yd., how many of these lines will there be? 2 tens is contained in 47 tens 23 times and 1 ten 6.60)986 7. 70)895 8. 80)984 9. 90)999 10. 90)946 11. 80)991 12. 70)909 13. 60)899 14. 50)1,469 15. 40)2,991 16. 60)3,489 17. 70)4,899 Divisors of Two Figures not Ending in a Cipher 325. Divide: 1. 687 by 31. PROCESS 221 31)687 62 ×67 x62 5 EXPLANATION. Separate the dividend so as to show the first partial dividend. 68 is the first partial dividend. (To find the first figure in the quotient divide 68 by 31. Try 68+ 30.) 68312 and a remainder. Place the 2 over the right-hand figure in the partial dividend. 2 × 31 = 62; 68626, the remainder. (To find the second figure in the quotient, try 67+30.) 67312 and a remainder. 2 x 3162; 67 625, the last remainder. The quotient is 22 and the remainder is 5, or 225 Ans. is the second partial dividend. (Try 104 70.) 104+71-1 and a remainder. 1 x 71-71; 104-71-33, the remainder. Bring down the 1, the next figure in the remainder. (Try 33170.) 33171 = 4 and 4 x 71 284; 331-28447, the last a remainder. remainder. 4 x 71 = The quotient is 614 and the remainder 47, or 61441 |