Study Guide
Unit 7: Weight
Chapter 1 Examples of test questions:

Strictly speaking, the kilogram is a unit of mass (a measure of the amount of matter in the object), not of weight ( a measure of the force of gravity on an object). However, since we use the term weight in daily speech when weighing things, it will be used here.
 A quart (or liter) of water weighs about 1 kg.
 Four hundred pennies weigh about 1 kg.
 Two regular paper clips weigh about 1 gram.
 The unit cube in some base10 sets weighs 1 gram.
 A teaspoon of water weighs 5 grams.
 A kilogram weighs 2.2 pounds, that is, a bit over two pounds. A good estimate when given the weight of a person in kilograms, for someone used to pounds, is to double that weight. A child who weighs 30 kilograms, would weigh about 60 pounds.
 4 kg 78 g = _____ g
 2 kg 2 g = _____ g
 8731 g = ____ kg ___ g

Arrange in order from lightest to heaviest and heaviest to lightest:
 8731 g 7 kg 92 g 6 kg 821 g 3 kg

A scale is drawn with items on top. If the scale is broken into quarters like a clock face:
 0 is at noon
 1 kg would be at 3
 2 kg would be at 6
 3 kg would be at 9
 4 kg would also be at noon
 between the numbers is a slightly longer line that represents half way
 Smaller lines represent individual kg
 An item is on the scale. The mark is two lines past the 3 kg mark. What is the weight of the item?
 Two scales side by side. The weight of an apple is shown. The other scale shows the weight of the apple with a banana. Find the weight of the banana.

Two items are labeled with weights: 4 kg 78 g and 9 kg 821 g. What is the total weight of the two parcels?
 What is the difference in weight between the two parcels?
 Bag A weighs 8 kg 431 g. It weighs 84 g less than Bag B. What is the weight of Bag B in grams?
 Nicolas weighed the box at 52 kg 204g. He put in a few more items and the box now weighs 58 kg. How much weight did he add into the box? ______ kg ____ g
Chapter 2 Examples of test questions:
 Chapter 2 focuses on Word Problems

Unit bars are required to be drawn correctly for a point on the test.
 Comparison models may use two or more bars to represent the quantities being compared.
 Each part of equal value is called a unit. For instance, if the first unit bar is work 20 and the second unit bar is 5 times as large, the second unit bar should have five units drawn and 20 written in each unit.
 The box weighs 4 kg 406 g. The empty box weighs 512 g. What is the weight of the items in the box?
 The container of fruit weighed 219 g. What is the weight of 7 such containers? Give your answer in kilograms and grams.
 Parcel A weighs 84 kg. It is 2 times as heavy as Parcel B. What is the weight of Parcel B?
 9 similar bags of cat food weigh 634 kg. How much does one bag of cat food cost?
 Two boxes weigh 69 kg. One box weighs 52 kg 397 g. What is the weight of the other box?
 The box of grapes weighs 4 kg 58 g. The box of apples weighs 873 g more than the box of grapes. What is the weight of the box of apples?
 Davis bought 8 cans of soda. They weighed 782 g. What was the weight of 3 such cans of soda?
 Nebyu’s dog weighs 94 kg. His cat weighs 6 kg less than the dog. The bird weighs 62 kg less than the cat. What does the bird weigh?
 7 kg 502 g of concrete mix was mixed with 793 g of sand. How much more concrete must be added to make 9 kg of concrete?
 Emma sold 4 kg 189 g of flour on Day 1. Day 2 she sold 8 kg 731 g. Day 3 she sold 6 kg 392 g. If 1 kg of flour cost $6, how much did she earn in all?
Chapter 3 Examples of test questions:

1 kg weighs 2.205 pounds or 35.28 ounces. 1 ounce has a mass of 28.35 grams. There are about 2 pounds in 1 kg. A person who weighs about 80 pounds weighs about 40 kilograms.
 A quart of water weighs about 2 lbs
 A slice of bread, about 60 paper clips, 11 pennies, or 5 quarters weigh about one ounce.
 The abbreviation for pound, lb, comes from the Latin word libra, a unit of weight.
 5 lb = ______ oz
 7 lb 3 oz = ______ oz
 78 oz = ___ lb ____ oz
 Add 7 lb 3 oz and 4 oz
 Subtract 7 lb 3 oz from 9 oz
 8 apples weigh 640 oz. One apple weighs _____ lb ____ oz
 A box of apples weighs 81 oz. 9 such boxes weigh _____ oz

Separate scales for pounds and ounces both circular like a clock face:

Ounces scale has 16 single marks.

Each mark is 0 – 15
 0 is at noon
 8 is at 6 on the clockface
 Read the weight in ounces.
 An item is on the scale. How much would 3 of the items weigh? _____ lb ____ oz

Each mark is 0 – 15

Pound scale
 0 is at noon
 1 lb would be at 3
 2 lb would be at 6
 3 lb would be at 9
 4 lb would also be at noon
 between the numbers is a slightly longer line that represents half way
 Smaller lines represent individual lb
 Read the weight as _____ lb ______ oz.

Ounces scale has 16 single marks.
 A huge box of crayons weighed 4 lbs 7 oz. Emily gave away 8 oz of crayons. What was the weight of the remaining crayons?
 Samuel put his toy cars in three containers. The first container weighs 7 lbs 3 oz. The second container weighs 31 oz more than the first. The third container weighs 2 lbs less than the second box. What is the weight of the third box?
 Various items and weights are given in oz. Find the weight of the items. Give your answer in pounds and ounces.
Unit 7 Cumulative Test:
 Review all of Units 1  7