# Multiplication of Units of Mass

We can multiply the units of mass kg and g by a number like ordinary numbers.

1. Multiply 115 kg by 6.

Hence, 115 kg × 6 = 690 kg

2. Multiply 32 kg 126 g by 7.

Multiply the grams by 7.

126 × 7 = 882 g. Write 882 under g column.

Multiply the kilograms

32 × 7 = 224 kg

Write 224 under kg column.

Hence, 32 kg 126 g × 7 = 224 kg 882 g.

When measurements are given as combination of two units, we can also first convert the bigger units to lower units and then multiply.

Alternative method:

First convert 32 kg 162 g into gram and then multiply by 7.

32 kg 126 g = 32000 g + 126 g

= 32126 g

32126 × 7 = 224882 g

Convert 224882 g into kg

224882 g = 224000 + 882 g

= 224 kg + 882 g

= 224 kg 882 g

Hence 32 kg 126 g × 7 = 224 kg 882 g

3. Multiply 19 kg 763 g by 5.

Solution:

First convert 19 kg 763 g into gram and then multiply by 5.

19 kg 763 g = 19000 g + 763 g

= 19763 g

19763 × 5 = 98815 g

Convert 98815 g into kg

98815 g = 98000 + 815 g

= 98 kg + 815 g

= 98 kg 815 g

Hence, 19 kg 763 g × 5 = 98 kg 815 g

Questions and Answers on Multiplication of Units of Mass:

1. The weight of one piece of each object is given. Find the weight of more.

(i) 5 bottles: __________

(ii) 20 pairs of shoes: __________

(iii) 10 books: __________

(iv) 45 bats: __________

(v) 17 chairs: __________

(vi) 16 pairs of skating boots: __________

1. (i) 9 kg

(ii) 30 kg

(iii) 31 kg 500 g

(iv) 40 kg 500 g

(v) 72 kg 250 g

(vi) 42 kg 80 g

2. Multiply the given:

(i) 7 kg 34 g by 10

(ii) 42 g 30 mg by 5

(iii) 48 kg 16 g by 6

(iv) 80 kg 450 g by 3

(v) 33 g 72 mg by 11

(vi) 9 kg 355 g by 6

2. (i) 70 kg 340 g

(ii) 210 g 150 mg

(iii) 288 kg 96 g

(iv) 241 kg 350 g

(v) 363 g 792 mg

(vi) 56 kg 130 g

## You might like these

• ### Months of the Year | List of 12 Months of the Year |Jan, Feb, Mar, Apr

There are 12 months in a year. The months are January, February, march, April, May, June, July, August, September, October, November and December. The year begins with the January month. December is the last month of the year. A year has 365 days.

• ### Months and Days | Months in a Year | Months of the Year | Millennium

We will discuss about the months and days in a year. There are 12 months in a year. They are: January, February, March, April, May, June, July, August, September, October, November and December.

• ### Days of the Week | 7 Days of the Week | What are the Seven Days?

We know that, seven days of a week are Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday. A day has 24 hours. There are 52 weeks in a year. Fill in the missing dates and answer the questions: 1. John was born 6th January. What day of the week is it?

• ### Quarter Past an Hour | Tell & Write the Time to Quarter Past the Hour

In a quarter hour, the minute hand moves 15 minutes on the clock. The minute hand points at 3. We say time is quarter past an hour. Look at the clock. The minute hand is at 3. The hour hand is between 1 and 2. So, the time is quarter past 1. We write 1 :15.

• ### Half Past an Hour | What does Half Past Mean? | Half an Hour|Half Past

We learnt that, one hour is equal to 60 minutes. When one hour is divided into two, it is half an hour or 30 minutes. The minute hand points at 6. We say, 30 minutes past an hour or half past an hour. Look at the clock. The minute hand is at 6. The hour hand is between 1 and

• ### How to Read a Watch or a Clock? |Read the Time Shown |Telling the Time

How to read a watch or a clock? The three figures will help us to read a clock. Hour hand indicates hours and Minute-hand indicates minutes.

• ### Measuring Time | Standard Unit of Time | Big Unit of Time | Leap Year

Measuring time will help us to do our daily work on time. We get up from bed early in the morning, do our work during the day time, and go to bed at night.

• ### Measuring Capacity | Standard Unit of Capacity | Litre | Millilitres

We will discuss about measuring capacity. The milkman measures milk in liters. Petrol is given in liters. Mobil oil is sold in liters. Two milk bottles contain 1 liter of milk. One milk bottle

• ### What is Mass? |Standard unit of Mass or Weight|Measure the Mass |Units

In third grade measurement of mass we will discuss about what is mass, standard unit of mass or weight etc,. What is mass? The quantity of matter in an object is called its mass. We must know that the

• ### Measuring Mass | Addition and Subtraction of Mass | Measure of Mass

We will discuss about measuring mass. We know the vegetable seller is weighing potatoes in kilogram. The goldsmith is weighing a ring in grams. The wheat bags are weighing in quintals.

• ### 2nd Grade Measurement of Length Worksheet |Measuring Length Worksheets

In 2nd grade measurement of length worksheet we will solve the problems on non-standard unit of length, standard unit of length, using a scale, using a ruler and word problems on measurement of length.

• ### Using a Ruler | Measure a Length | Length of an Object|Find the Length

We will learn measure a length using a ruler. The ruler given below has 15 cm marked on it. The length of the ruler is 15 cm. To measure a length of a pencil, place at the ‘0’ of the ruler at the one end of the pencil and note the position of the other end.

• ### Using a Scale | Measure the Length | Meter Rod | Metal Tape | Ruler

We will learn how to measure the length using a scale. A cloth merchant uses a rod to measure the length of the cloth. This is called a meter rod. A tailor uses a tape to take measurements for stitching a cloth. A carpenter or mason uses a metal tape to measure the length.

• ### Standard Unit of Length | Unit Kilometre|Meter (m) and Centimetre (cm)

What is the standard unit of length? We know some non-standard units of length like hand-span, cubit, etc., and also with standard units of length like meter and centimetre. We have seen a meter-rod

• ### 3rd Grade Worksheet on Time | Conversion of Time | Telling Time | Ans

In 3rd Grade Time Worksheet we will solve the problems on reading times in 5-minute intervals, quarter past and quarter to, read and write the time shown on the given clocks in two ways, expressing time in a.m. and p.m., duration of time, 24-hours clock, converting 12-hours