7th Holiday Break Packet 2015

Transcription

1 7th Holiday Break Packet 205 Name: Date:. Jan owed a $.00 library fine and then paid the $.00 fine. Which of these describes how much Jan owes now? 4. Which model could be used to find the sum of 5 and 7? A. A. + = 2 B. = 2 + = 0 0 = B. 2. During a flood, 2 picnic tables near a community center were destroyed. A local service organization replaced the 2 picnic tables. Which of these describes the situation? A. 0 2 = 2 B = = = 0 3. During a hot air balloon flight, the operator descended 800 feet, then ascended 800 feet. Which of these describes the net change in elevation? A = 600 B = What is the additive inverse of 5? A. 5 B. 5 5 Negative five does not have an additive inverse = = 800 page

2 6. An airplane traveling at 24,000 feet makes a climb of 6,000 feet followed by a descent of 2,000 feet. Represent the plane s final altitude as a sum of positive and negative integers. 9. A hiking group started hiking at a beginning elevation of about 6,000 feet. In the afternoon they were at an elevation of about 507 feet higher than where they started. They realized they had forgotten their first aid kit and had to hike back down 289 feet of elevation. What addition problem best estimates their current elevation on the mountain? 7. The temperature at 6:00 p.m. was 2 F. At 6:00 a.m. it was 6 F cooler. What the temperature was at 6:00 a.m.? Draw a number line to illustrate your answer. A. 6, ( 300) = B. 6, = 6, ( 200) = 6, = 8. In Whitehorse, the high temperature for the day was 7 C, and in Yellowknife the high for the same day was 8 What was the difference in high temperatures between the two cities? A. 5 C B. C 8 C 5 C 0. Sydney stood on a 3 foot high stool, then jumped into a 2 foot deep hole. Which equation applies to her action? A. 3 5 = 2 B. 3 2 = 2 3 = 5 3 = 2 page 2 7th Holiday Break Packet 205

3 . Josè stood on a 4 foot high stool, then jumped into a foot deep hole. Which equation applies to his action? 5. Simplify: 28 ( 46) A. 74 B A. 5 4 = B. 4 5 = 4 = 3 4 = 3 2. A squirrel climbed 5 meters up a tree, then 7 meters down, then 3 more meters down, and finally meters up. What number sentence would represent this situation? A = 6. The highest elevation in a small country occurs on a mountain 232 meters above sea level, while the lowest elevation in the same country occurs at 27 meters (below sea level). What is the difference in elevation between the highest and lowest points? A. 259 meters B. 456 meters 46 meters none of these B = = = 7. A piece of equipment for an oil rig is designed to function in temperatures as low as 30 Celsius and as high as 05 Celsius. What is the termperature range that this equipment is designed to operate in? ( 5) = A. 94 B A. 45 C B. 35 C 05 C none of these 4. Simplify: If the temperature in Asheville, North Carolina is 5 F, how far would it have to fall to reach 5 F? A. 58 B A. 5 B page 3 7th Holiday Break Packet 205

4 9. If you are traveling in an airplane at 20,000 feet, which of the following altitude changes would bring the plane to 8,000 feet? A. 4,000 feet B. 2,000 feet 2,000 feet 28,000 feet 23. Reynoldo wants to calculate a product. ( 3)(3) = Which number goes in the box to complete the equation? A. 0 B During one year the highest temperature was recorded in July at a record 06 F. The lowest temperature recorded was in January at a low of 7 F. What was the difference between the recorded high and recorded low temperatures? 24. Look at the product. (2)( 2) Which of the following could be represented by the product? A. 99 F B. 3 F 23 F 33 F A. Aaron won two $2.00 ice cream cones. B. Carson sold two trading cards for $2.00 each. David melted two teaspoons of butter to pour over 2 bowls of popcorn. Brin owes a fine of $2.00 on each of two overdue library books. 2. The hottest temperature on the moon was 7 The coldest temperature on the moon was 63 What was the range between the highest lunar temperature and the lowest? A. 46 C B. 80 C 280 C 286 C 25. For a camping trip, Mr. James took small propane tanks to use with the camp stove. Describe how to use the distributive property to mentally calculate the cost of 5 small propane tanks that cost $7.50 each. 22. Simplify: = A. 8 2 B page 4 7th Holiday Break Packet 205

5 = A. 72 B Rewrite in decimal form. A B What is the decimal form of 25 00? A B What is the correct way to express 4 as a decimal? A B Which decimal is equal to 4 5? A B Karen has read 203 out of 250 pages in her book. How would this ratio be expressed in decimal form? A B What is the correct way to express 3 5 as a decimal? A B Which of these is equivalent to 5 6? A B A dress that was originally priced at $22.84 is on sale for 25% off. One way to calculate the savings is to multiply $22.84 by. A. 8 B page 5 7th Holiday Break Packet 205