decimeters on a side? How many square decimeters does it contain? How many square decimeters make one square meter? 210. Draw a square whose side is one decimeter. How many square decimeters does it contain ? How many centimeters long and wide is it? How many square centimeters does it contain? How many square centimeters in one square decimeter ? In the same way find how many square millimeters in one square decimeter. 211. The answers to the above questions form the following table of surface measure, which is used for all ordinary surface measurements: 212. 1. Which denomination of this table is like the are ? 2. Like the centare? 3. Like the hectare ? 4. How far to the right must the decimal point be moved to reduce sq. m. to sq. dm.? 5. How many places to the left must the decimal point be moved to reduce sq. m. to sq. Dm.? 6. To reduce sq. mm. to sq. cm.? 7. To reduce sq. mm. to sq. dm.? 8. Reduce 5555 ca. to Ha. 9. Reduce 3333 Ha to ca. 10. A field 134 M. long and 7 Dm. wide, contains how many sq. m. of land? 11. How many ares? 15. How many sq. cm. ? 16. How many sq. cm. in an oblong 643 cm. long and 2.5 m. wide ? 17. How many sq. mm. ? 18. How many sq. Km.? 19. One hectare equals about how many acres? VOLUME MEASURE. 213. The unit chiefly used in measuring wood and stone is the Stere (pronounced stair), which is a cube whose edge is one meter. What denomination in the English volume measure is most nearly like the stere? How many cubic meters does the stere contain? How many decisteres ? How many centisteres? How many millisteres? QUESTIONS. 214. A cube whose edge is one meter long contains how many cubic meters? It is how many dm. long? Wide? High? How many cu. dm. does it contain? How many High? How many cu. cm. does it contain? How many cu. cm. = - 1 cu. dm.? A cube whose edge is 1 cm. contains how many cu. cm.? How many mm. long is it? Wide? High? How many cu. mm. does it contain? How many cu. mm. = 1 cu. cm.? 215. From the answers to the above questions make the following: 216. 1. How may cubic millimeters be reduced to cubic centimeters? To cubic dm.? To cu. m.? 2. How many places to the right must the decimal point be moved to reduce cu. meters to cu. millimeters? 3. Reduce 7 cu. meters to cu. millimeters. 4. Reduce 5 cu. millimeters to cu. meters. 5. How many steres in one cu. meter? 6. A pile of wood is 30 dm. long, 3 m. wide, and 18 dm. high. How many cu. meters does it contain? 7. How many steres ? 8. How many cu. millimeters? 9. How many cu. centimeters of air in an empty box 2 m. by 12 dm. by 75 cm.? 10. How many cubic dm.? 11. How many steres of stone in a wall 30 m. long, 5 dm. thick, and 250 cm. high? CAPACITY MEASURE. 217. The metric capacity measure takes the place of both the liquid and the dry measure of the English system. The standard unit of capacity measure is the Liter (pronounced leeter), which is a cube whose edge is one decimeter. QUESTIONS. 218. 1. The liter is what part of a meter wide? High? Long? 2. What part of a cubic meter does it contain? 3. About how many inches wide is it? High? Long? About how many cu. in. does it contain? 4. Show with your hands how wide, high, and long a liter is. 5. What denomination of English dry measure corresponds most nearly to the liter? 6. Make a full-sized picture of a liter. 7. What object the size of a liter do you know? TABLE. 219. The table of capacity is formed similarly to the other metric tables, and is as follows: 220. 1. How many liters in 1 myrialiter? In 1 ml.? 2. How many milliliters in 1 Ml. ? 3. Reduce 12345678 ml. to higher denominations. 4. Read the above number, giving each figure the name of the denomination it represents. 5. Reduce 154.67 cl. to Kl. 6. Reduce .012346 Ml. to dl. 7. How many liters equal one cubic meter? 8. A bin is 2.5 m. wide, 6.4 m. long, and 17 dm. deep. How many liters of oats will it hold? How many Hl.? How many Kl. ? 9. A tank is 3 m. long, and 3 m. wide. How many dm. deep must it be to hold 50 Hl. of water? 10. A stone containing 1 stere, if dropped in a pond, would displace how many liters of water? MEASURES OF WEIGHT. 221. The Gram is the unit of weight. It is equal to the weight of a cubic centimeter of distilled water at its greatest density. 222. 1. How many grams in 1 Metric Ton? 2. How many mg. in 1 metric ton ? |