Math A Midterm Review2016-17 Name Class
1. What number is 10,000 more than 333,333?
- 333,433
- 334,333
c. 343,333
- 433,333
2. John wanted to use his calculator to add 1,379 and 243. He entered 1,279 + 243 by mistake. What could he do to correct his mistake?
a. Add 100.
b. Add 1.
c. Subtract 1.
d. Subtract 100.
3. Which of these numbers is between 0.07 and 0.08?
a. 0.00075
b. 0.0075
c. 0.075
d. 0.75
4. Which fraction or mixed number represents 3.049?
5. Sound travels at approximately 330 meters per second. The sound of an explosion took 28 seconds to reach a person. Which of these is the closest estimate of how far away the person was from the explosion?
A. 12,000 m
B. 9,000 m
C. 8,000 m
D. 6,000 m
6. Which of these is the smallest number?
a. 0.625
b. 0.25
c. 0.375
d. 0.5
e. 0.125
7. Which letter location on the number line below represents a 0.1 mark A ?
8. 25 × 18 is more than 24 × 18. How much more?
a. 1
b. 18
c. 24
d. 25
9. Tony and Marina each walk to the school’s Learning Center for classes. Tony lives eight blocks east of the school. Marina lives 12 blocks west of the school. How many block apart between Tony’s and Marina’s house?
8 + 12 = 20
10. If the solution is 120, which of the following problems was solved?
a. 35 – 5 × 4
b. (35 – 5) × 4
c. (60 – 20) ÷ 3
d. 60 – 20 × 3
e. (150 – 2) × 15
11. Select the expression that is NOT equivalent to the rest of the expressions.
a. 3 × 4 × 2
b. 3(4×2)
c. (4 + 4 + 4) × 2
d. (3+3+3+3) ×2
e. 3(4 + 2)
12. Which of the following statements below is NOT TRUE?
a. (3 × 6) × 5 = 3 × (6 × 5)
b. (4 + 2) + 7 = (2 + 4) + 7
c. (8 - 2) × 4 = (8 × 4) - (2 × 4)
d. (8 ÷ 2) ÷ 2 = 8 ÷ (2 ÷ 2)
13. −12 − 6 = −18
14. 1 – 5 × (−2) = 11
15. A company produced 17,175 cars in 1996. For a report, this number was rounded to the nearest hundred. Which was the number of cars given in the report?
17,200
16. If you have $20, do you have enough money to buy movie tickets for 4 children at $4.50 each? Use rounding to estimate your result. Show your work.
4 × 5 = 20 is within budget even overestimating
17. We had 10 six-packs of juice to start. Now there are two cans missing from each of five of those six-packs and four cans missing from each of the other five. Which of the following expressions shows the number of cans we still have?
a. 6 × 10 – 2 – 4
b. 6 × 10 + 2 + 6
c. (6 – 2) × 5 + (6 – 4) × 5
d. (6 + 2) × 5 + (6 + 4) × 5
18. Count the number of cubes (1×1×1) in this figure.
(1 + 2 +3 + 4 +5) × 5 = 75
19. Planting Zones
Chart of Plant Hardiness Zones
This chart is used to match the survival temperatures of a plant that you plan to buy with the coldest temperatures in the zone where you live, so that you can be assured that your plant will survive the coldest months in your area.
a. How much colder is the lowest minimum temperature in Zone 4 (most of the Northeast) than the lowest minimum temperature in Zone 9 (Florida)?
20 – (-30) = 50
Plant Scenarios-Will the Plants Survive the Winter?
b. Daffodils grow in the spring and are very hardy. They even grow in Zone 3. Minnesota is in Zone 3. During a winter cold spell in northern Minnesota, the temperature rose to 5° and then dropped 50° at night for several days. Did the daffodils survive this unusual cold spell? Why or why not?
No because 5 – 50 = -45, which is lower than the minimum temperature (-40) in Zone 3
c. A flower catalogue advertised azalea shrubs that were hardy in Zones 6-9. All of Kentucky is Zone 6. One winter, the month of January was very cold. The daytime temperatures hovered around 35°, and at night, the temperatures dropped nearly 40 degrees. Would the plants be likely to survive? Why or why not?
Yes because 35 – 40 = -5, which is higher than the minimum temperature (-10) in Zone 6
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