Grade 8 CRCT Review (Accelerated Math 1)

Transcription

1 Grade CRCT Review (Accelerated Math ) Multiple Choice Identif the choice that best completes the statement or answers the question.. Find the two square roots of the number. a., c., b., d.,. A square mosaic is made of small glass squares. If there are 9 small squares in the mosaic, how man are along an edge? a. 9 squares c. squares b. 9 squares d. squares. A square room has a tiled floor with square tiles. How man tiles are along an edge of the room? a. 9 tiles c. 0 tiles b. tiles d. 0 tiles. The square root is between two integers. Name the integers. a., c., b., d.,. Elena needs to cut a square piece of wood with an area of 9 square inches. How long should the sides of the square be, rounded to the nearest tenth of an inch? a. in. c.. in. b.. in. d.. in.. A chessboard is made of small squares. Suppose a single square on a chessboard has an area of square centimeters. How long is one side of the entire board, rounded to the nearest tenth of a centimeter? a.. cm c. 9. cm b.. cm d. 9. cm. Evaluate the expression. If necessar, round our answer to the nearest tenth. a. 0 c. b. d... Classif the number as rational or irrational. a. irrational b. rational 9. Classif the number as rational, irrational, or not a real number. a. irrational b. not a real number c. rational. Find a real number between and. a. c. b. d.. Write in exponential form.

2 . Write in exponential form.. Write in exponential form. a. 0 c. b. d.. Evaluate. a. 0 c. b. d.. Evaluate b extending the pattern in the table. 0-0 a c b d. 0. Evaluate. a. c. b. d.. Evaluate for a =, b =, c =, x =, and =. 9. Multipl. Write the product as a power. b. Cannot combine d. 9. Divide. Write the quotient as a power. b. Cannot combine d. 0. Simplif.. Write the number. in standard notation.

3 a. 0 c.,00,000 b.,0,000 d.,000,000. Write the number 9.9 in standard notation. a c b. 9,9,000 d Write the number 0,000 in scientific notation. a. 0 c... Write the number in scientific notation Suppose a sheet of 0 stamps is 0. millimeters thick. If a stack of sheets contains 0,000 stamps, how man millimeters thick is the stack? Write the answer in scientific notation. a.. mm c. mm b.. mm d. 0 mm. If an average grape weighs. grams and a compan purchases,000,000 grapes, how much will the grape shipment weigh in kilograms? Write the answer in scientific notation. a.. kg c.. kg b. kg d. 0 kg. The attendance at a parade was. people. The attendance at a rall was. people. Which event had the higher attendance? a. rall b. parade. The attendance at a college football game was. people. The attendance at a World Cup soccer match was. people. Which event had the higher attendance? a. soccer match b. football game 9. Which is a Venn diagram that shows the relationship between the sets? primar colors: {red, green, blue} colors in the American flag: {red, white, blue} a. Primar Colors on c. Primar Colors on Colors American Flag Colors American Flag green red blue white green red ellow blue white

4 b. Primar Colors on Colors American Flag d. Primar Colors on Colors American Flag orange green ellow red blue black white red green blue red white blue 0. Use the Venn diagram to find.. Use the Venn diagram to find.. Use the Venn diagram to find an subsets. a. b. c. None. Use the Venn diagram to find.

5 . Determine whether the first set is a subset of the second set. Use the correct smbol. N = {counting numbers} W = {whole numbers} a. b.. Determine whether the first set is a subset of the second set. Use the correct smbol. Q = {rational numbers} Z = {integers} a. b.. Determine whether the first set is a subset of the second set. Use the correct smbol. H = {,,,, } P = {positive integers} a. b.. Determine whether the first set is a subset of the second set. Use the correct smbol. G = {,,,, } Q = {rational numbers} a. b.. Find the intersection of the sets. H = {,,, } G = {0,,, } 9. Find the intersection of the sets. Q = {rational numbers} R = {real numbers} 0. Find the intersection of the sets. S = {x x < } T = {x x > }. Find the union of the sets.

6 Grass growth (cm) Q = {rational numbers} Z = {integers}. Find the union of the sets. M = {,,, } P = {,, }. Find the union of the sets. H = { 9,,, } O = {odd integers}. Find the union of the sets. J = {x x > } Y = {x }. A lawn specialist measured the average temperature during different growing periods and the amount that the grass grew during each period. The scatter plot shows the results of his stud. Based on this plot, which is the best prediction for the growth that would occur if the temperature were F? Average temperature ( F) a. centimeters c. centimeters b.. centimeters d.. centimeters. Plot the data and find a line of best fit. x

7 a. c. x x b. d. x x. Lionel observes that traffic is getting worse and it takes him longer to get to work. He records once a week the following data for several weeks. Find a line of best fit. Use the equation of the line to predict how long it will take him to get to work in Week. Week Time (min)

8 a. 9 Time c. 9 Time 9 W eek 9 W eek b. It will take him about minutes to get to work in Week. Time d. It will take him about minutes to get to work in Week. Time W eek 9 W eek It will take him about minutes to get to work in Week. It will take him about 9 minutes to get to work in Week.. The table shows the time it takes for a candle to burn. Plot the data on a graph. Then write the equation of a line of best fit and graph the line. Time (min) Height (in)..

9 a. 0 x b. 0 x c. 0 x

10 d. 0 x 9. In the figure, the angles are formed b a transversal and two parallel lines. Which angles seem to be congruent? a. ; b. ; c. ; d. ; 0. The angles are formed b a transversal and two parallel lines. Which angles seem to be congruent? a. ; b. ; c. ; d. ;. The angles are formed b a transversal and two parallel lines. Which angles seem to be congruent? a. ; c. ;

11 b. ; d. ;. The angles are formed b a transversal and two parallel lines. Which angles seem to be congruent? a. ; b. ; c. ; d. ;. In the figure, line m line n. Find the measure of. n p m a. c. b. d.. In the figure, line m line n. Find the measure of. m n p a. c. b. d.. In the figure, line m line n. Find the measure of. m n p a. c. b. d.. In the figure, line g line h. Find the measure of.

12 f g h a. 9 c. 9 b. d.. In the figure, line g line h. Find the measure of. f g h a. c. b. 9 d. 9. In the figure, line g line h. Find the measure of. f g h a. 9 c. b. d In the figure, line d line c. Find the measure of. d c b a. c. b. d. 0. In the figure, line d line c. Find the measure of.

13 d c b a. c. b. d.. In the figure, line d line c. Find the measure of. c d b a. c. b. d.. Find m. A xº (x - 0)º B C a. m = 0º c. m = º b. m = º d. m = 0º