5th grade pssa math

Multiply: 640 × 390 without using a calculator.

• 249,600

• 293,600

• 540,000

• 768,000

2. Darren is told that the weight of an old coin is 37.2 grams. However, when he weighs the coin he finds that the digit in the hundredths place has a value that is ___1 10 of the value of the digit in the tenths place. Which expression, in expanded form, shows the weight, in grams, Darren finds?

• A. 30 + 2 + 0.2

• B. 30 + 7 + 0.2 + 0.01

• C. 30 + 7 + 0.2 + 0.02

• D. 30 + 7 + 0.2 + 0.10

The table below shows four mineral samples and the mass of each sample.

Mineral Masses Mineral Mass (grams)

albite 3.012

graphite 3.07

magnetite 3.061

quartz 3.05

Which number sentence correctly compares the masses, in grams, of two of the mineral samples?

• A. 3.05 < 3.061

• B. 3.05 < 3.012

• C. 3.012 > 3.07

• D. 3.012 > 3.061

Jake measured the amount of salt in two liters of seawater. His results are listed below.

first liter: 33.165 grams

second liter: 35.787 grams

He rounds both values to the nearest hundredth and adds them. What is the sum of the rounded amounts of salt Jake found in the seawater?

• A. 68.95 grams

• B. 68.952 grams

• C. 68.957 grams

• D. 68.96 grams

Students are weighing two types of rubber balls during science class.

• Each yellow rubber ball weighs 1.28 pounds.

• Each red rubber ball weighs 0.96 pound.

What is the total weight of 25 yellow rubber balls and 50 red rubber balls?

• A. 56 pounds

• B. 80 pounds

• C. 88 pounds

• D. 168 pounds

A gardening shop receives a shipment of 12 crates of plants. Each crate contains 18 plants. A worker displays all the plants on 24 shelves with the same number of plants on each shelf. How many plants are displayed on each shelf?

• A. 6

• B. 9

• C. 16

• D. 36

An after-school program has 24 sports video games students can play after they finish their homework. There are three types of sports games.

football: 1/6 of 1/12 of the video games

basketball: 1/4 of 2/3 of the video games

soccer: the remaining video games

How many video games are soccer games?

• 2

• 4

• 18

• 20

A space heater warms the temperature of a room by 2/3 of a degree Fahrenheit each minute. By how many degrees Fahrenheit will the space heater warm the room in 6 1/2 minutes?

• 4 1/3

• 5 5/6

• 7 1/6

• 9 3/4

Sophie had 60 flashlights for sale at her store. She sold 4/5 of the flashlights. Which statement about the number of flashlights sold must be true?

• A. Sophie sold 48 flashlights because 60 × 4/5 = 48.

• B. Sophie sold 75 flashlights because 60 ÷ 4/5 = 75.

• C. Sophie sold 52 flashlights because 4/5 = 0.8 and 60 – 8 = 52.

• D. Sophie sold 40 flashlights because both the numerator and the denominator of 4/5 are factors of both 40 and 60.

Emma and Bella collect bugs for a science project.

• On Monday, Emma collects 15 bugs, and Bella collects 3 times as many bugs as Emma collects.

• On Tuesday, Emma collects 6 bugs, and Bella collects 8 times as many bugs as Emma collects.

Which expression can be used to find the total number of bugs the girls collect on both days?

• A. (15 + 6) × (3 + 8)

• B. (15 + 3) × (6 + 8)

• C. [15 + (3 × 15)] + [6 + (8 × 6)]

• D. [15 × (3 + 15)] + [6 × (8 + 6)]