# Module 4 - Unit 1: Units of Measure

## Self-Audit

For the multiple choice questions below, choose one answer, (a), (b), (c) or (d), that is CORRECT by clicking the appropriate box.
Calculators are NOT allowed unless it is indicated in the question.

## Section 1.1 - Estimating

Question 1
 Which of the following would be the best estimate for the diameter of a cricket ball? (A) 7 mm (B) 7 cm (C) 17 cm (D) 7 m
Question 2
 Which of the following would be the best estimate for the mass of an orange? (A) 2 grams (B) 20 grams (C) 200 grams (D) 2 kg
Question 3
 Which of the following would be the best estimate for the capacity of a can of Ting? (A) 3 ml (B) 30 ml (C) 300 ml (D) 3 litres
Question 4
 The sketch shows a tall person standing next to a car. What is the best estimate for the length of the car? (A) 0.5 m (B) 1 m (C) 1.5 m (D) 2 m

## Section 1.2 - The Metric System: Conversion Between Units

Question 5
 220 cm = ? m (A) 2200 (B) 22 (C) 2.2 (D) 0.22
Question 6
 5.7 tonnes = ? kg (A) 57 (B) 570 (C) 5700 (D) 57000
Question 7
 100 ml = ? litres (A) 1 (B) 0.1 (C) 0.01 (D) 0.001
Question 8
 A cake recipe requires 0.5 kg of flour. Lisa has 750 grams of flour. How much flour will she have left when she has made the cake? (A) 0.025 kg (B) 0.25 kg (C) 7 kg (D) None of these

## Section 1.3 - Estimating Imperial Units

Question 9
 The sketch shows an adult standing next to his car garage. Estimate the actual height of the garage. (A) 7 yards (B) 7 feet (C) 7 inches (D) None of these
Question 10
 Estimate the total weight of 4 apples. (A) 2 lbs (B) 5 lbs (C) 1 stone (D) None of these
Question 11
 Estimate the length of a minibus. (A) 3 feet (B) 3 yards (C) 12 yards (D) None of these
Question 12
 An adult walks 2000 paces. Estimate the length of this walk. (A) 200 yards (B) 500 yards (C) 1 mile (D) None of these

## Section 1.4 - Metric and Imperial Units

Question 13
 Convert 8 feet 4 inches into inches. (A) 84 (B) 92 (C) 100 (D) None of these
Question 14
 The distance from Kingston to Montego Bay is about 190 km. Approximately how many miles is this? (A) 100 (B) 120 (C) 300 (D) None of these
Question 15
 A bottle contains 4 litres of milk. Approximately how many pints of milk does this bottle contain? (A) 5 (B) 7 (C) 9 (D) 11
Question 16
 Steve buys 36 litres of gasoline for his car. Approximately how many gallons of gasoline is this? (A) 4 (B) 6 (C) 8 (D) 10

## Section 1.5 - Problems in Context

Question 17
 A glass holds 50 ml of drink. Approximately how many glasses can be filled from a 1 gallon can? (A) 9 (B) 90 (C) 900 (D) None of these
Question 18
 A baker buys a 50 kg sack of flour to make bread. He uses 1 lb of flour for each loaf of bread. How many loaves can he make with 1 sack of flour? (A) 11 (B) 100 (C) 110 (D) 120
Question 19
 How many books of width 2 cm can be lined up on a shelf of length 3 feet? (A) 30 (B) 35 (C) 40 (D) 45
Question 20
 The average length of a car is 3 m. If 150 cars are stuck in a traffic jam, bumper to bumper, what is the total length of this traffic jam? (A) 50 yards (B) 200 yards (C) 500 yards (D) 1000 yards