Answers SY2025-26 - 1205010 MJ Grade 6 Mathematics Sem 1 CRUnit Test

Unit Test — Unit test Answers

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If NASA scientists use positive and negative numbers to represent the time surrounding a rocket launch, what would zero mean?

one hour before take-off

two minutes before take-off

the moment of take-off

two minutes after take-off

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Marcelino bought balloons to sell at lunches to raise money for charity.ItemCostThirty Balloons$22.50Ribbon$7.50Helium Tank Rental$15.00Marcelino claims he will raise a lot of money by selling each balloon for $1.25. Which statement is true about the amount of money he will make if he sells all of the balloons?

Marcelino will only make a profit of $7.50; each balloon costs $1.50, so he’s making $.25 on each balloon.

Marcelino will break even; his cost will equal his profits.

Marcelino will have –$7.50; his costs are more than his profits.

Marcelino will raise $45.00; each balloon raises $1.50.

Which situation involves a change modeled by a positive number but an end result modeled by a negative number?

Leo enters an elevator on the second floor and goes down four floors.

A plane, flying at an altitude of 300 feet, descends 50 feet.

Irene is scuba diving at –30 feet. She swims 10 feet toward the surface to watch a school of fish.

April owes her brother $5. On Friday, she gets $10 for her allowance.

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?

0.2, one-fourth, StartFraction 3 Over 8 EndFraction, 0.8, StartFraction 7 Over 8 EndFraction

0.2, one-fourth, StartFraction 3 Over 8 EndFraction, StartFraction 7 Over 8 EndFraction, 0.8

One-fourth, 0.2, StartFraction 3 over 8 EndFraction, StartFraction 7 Over 8 EndFraction, 0.8

0.8, one-fourth, StartFraction 3 Over 8 EndFraction, 0.2, StartFraction 7 Over 8 EndFraction

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

5.4, 5.34, –1.8, –3.216, –3.62

–3.62, –3.216, –1.8, 5.34, 5.8

–1.8, –3.216, –3.62, 5.34, 5.4

5.34, 5.4, –1.8, –3.62, –3.216

Suzi works as a nanny. She can spend $40 a month on arts and crafts supplies. This month, Suzi spent $12 on specialty paper and $8 on felt. How much more can she spend this month on arts and crafts without having a negative balance?

–$60

–$20

$20

$60

What is ?

–18

–9

Jaiden is ordering 2.615, 2.65, 2.7, and 2.623 from least to greatest. Here are his steps:(1) Compare and order 2.7 and 2.65 because they have the fewest digits.(2) Compare each digit of the numbers 2.615 and 2.623. * The units digits are equal. * The tenths digits are equal. * 1 < 2 in the hundredths place so 2.615 < 2.623.(3) Combine the two lists into one: 2.7, 2.65, 2.615, 2.623.Which statement describes Jaiden’s error?

Jaiden listed the numbers from greatest to least.

Jaiden should have compared the two numbers with the most digits first.

Jaiden should have added zeroes to each of the shorter decimals to get 2.615, 2.065, 2.007, and 2.623. Then, he should have compared all of them using place value.

Jaiden should have added zeroes to the ends of the shorter decimals to get 2.615, 2.650, 2.700, and 2.623. Then, he should have compared all of them using place value.

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?

Juan

Gregor and Isabelle

Gregor, Isabelle, and Juan

Hiroki and Karen

Which shows the list of numbers in order from least to greatest?, , , , –1