Introduction to Scientific Notation — Unit test Answers

Karim wants to buy a shirt that normally sells for $46.50. It is on sale for off. How much does Karim need to pay to buy the shirt on sale?

What is ?

Isabella’s mom takes her and two other friends mini-golfing. The table below shows how much different things cost at the mini-golf park.Price SheetItemCostAdult Game$7.00Child Game$3.50Pirate Hat$17.2510 Arcade Tokens$4.00Isabella’s mom purchases 1 adult game, 6 child games, a pirate hat, and 30 arcade tokens. She has a coupon for off the total bill. How much did Isabella’s mom spend at the mini-golf park?

Coach Burns charted the change in his runners’ 5K times from the first race of the year to the second race of the year. Which student improved the most by decreasing the time needed to run the race?Overall Change in 5K Times from the First to the Second RaceRunnerTime over (+) or under (–) previous runAlbert–15.7 secondsCody+1.4 secondsHannah+4.5 secondsYasim–37.4 seconds

To estimate 103% of 63, Rich rounded 103% down to 100%, 63 down to 60, and multiplied 60 by 1 to get 60. Which of these statements is correct?

Troy has a price chart below for various ingredients he needs to order for his sandwich bar.Sandwich IngredientsItemCost (per pound)Onions$0.79Tomatoes$0.93Cheese$1.85Ham$3.15Turkey$3.40Troy has to order 8 pounds of ham, 15 pounds of cheese, and 12 pounds of turkey. What is the total cost of Troy’s order?

Which list orders –3.216, 5.34, –3.62, –1.8, and 5.4 from greatest to least?

Hakim needs to simplify the expression below.Which operation should he perform first?

Which number is an integer?

Which list correctly orders A, B, and C from least to greatest when A = –8, B = , and C = ?

Nico and Albert are finishing up a science project. They measured the length in inches of three insects. They also found the average measurement of two more insects from a website. Bug LengthBugLength in inchesLady bugAntFireflyHoneybee0.8Deer tick0.2Which list shows the lengths from shortest to longest?

Which equation can be used to determine the percent of the diagram that one section represents?

Which set includes rational numbers but not natural numbers?

Coach DeCaro records the cross country runners’ times compared to their personal best times.3K TimesRunnerTime compared to personal bestGregor+5.6Hiroki–11.6Isabelle+3.2Juan0Karen–5.2Which runners ran slower than their personal best?