Multiplication€¦ · 10 Canadian Curriculum MathSmart (Grade 4) ISBN: 978-1-927042-13-7...

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1. Numbers to 10 000 ..................................................................................... 2 2. Addition and Subtraction ......................................................................... 6 3. Multiplication ............................................................................................. 10 4. Division ........................................................................................................ 14 5. Time ............................................................................................................ 18 6. Perimeter and Area .................................................................................. 20 7. 2–D Shapes ................................................................................................ 24 8. 3–D Figures ................................................................................................. 28 Midway Test ............................................................................................... 32 9. Fractions ..................................................................................................... 38 10. Decimals..................................................................................................... 42 11. Addition and Subtraction with Decimals ............................................... 46 12. Money ........................................................................................................ 50 13. Capacity, Volume, and Mass .................................................................. 52 14. Patterning .................................................................................................. 56 15. Transformation and Coordinates ............................................................ 60 16. Graphs and Probability ............................................................................ 62 Final Test ..................................................................................................... 66 Answers ...................................................................................................... 73 ISBN: 978-1-927042-13-7

Transcript of Multiplication€¦ · 10 Canadian Curriculum MathSmart (Grade 4) ISBN: 978-1-927042-13-7...

Page 1: Multiplication€¦ · 10 Canadian Curriculum MathSmart (Grade 4) ISBN: 978-1-927042-13-7 Multiplication When you multiply a number by 10, 100, or 1000, just add the same number of

1. Numbers to 10 000 ..................................................................................... 2

2. Addition and Subtraction ......................................................................... 6

3. Multiplication .............................................................................................10

4. Division ........................................................................................................14

5. Time ............................................................................................................18

6. Perimeter and Area ..................................................................................20

7. 2–D Shapes ................................................................................................24

8. 3–D Figures .................................................................................................28

Midway Test ...............................................................................................32

9. Fractions .....................................................................................................38

10. Decimals.....................................................................................................42

11. Addition and Subtraction with Decimals ...............................................46

12. Money ........................................................................................................50

13. Capacity, Volume, and Mass ..................................................................52

14. Patterning ..................................................................................................56

15. Transformation and Coordinates ............................................................60

16. Graphs and Probability ............................................................................62

Final Test .....................................................................................................66

Answers ......................................................................................................73

ISBN: 978-1-927042-13-7

Page 2: Multiplication€¦ · 10 Canadian Curriculum MathSmart (Grade 4) ISBN: 978-1-927042-13-7 Multiplication When you multiply a number by 10, 100, or 1000, just add the same number of

10 ISBN: 978-1-927042-13-7Canadian Curriculum MathSmart (Grade 4)

Multiplication

When you multiply a number by 10, 100, or 1000, just add the same number of z e ro ( e s ) t o t h e number to get the answer.

Multiplication – a short way to find a sum when the addends are the same

Product – the answer you get after multiplying

multiplicand multiplier

Number of stars: 3 x 4 = 12 product

Do the multiplication mentally.

A 5 x 10 = B 10 x 9 =

C 10 x 8 = D 1 x 100 =

E 7 x 100 = F 100 x 2 =

G 3 x 1000 = H 4 x 1000 =

Find the products.

I 4 x 200 = 4 x x 100

= x 100

=

J 2 x 30 = 2 x x 10

= x 10

=

K 5 x 400 = L 7 x 300 =

M 2000 x 9 = N 40 x 6 =

O 3000 x 4 = P 8 x 90 =

Q 500 x 9 = R 6000 x 3 =

Think: 800 = 8 x 100

800 x 4 = 8 x 100 x 4 = 8 x 4 x 100 = 32 x 100 = 3200A quick way to find the answer!

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Page 3: Multiplication€¦ · 10 Canadian Curriculum MathSmart (Grade 4) ISBN: 978-1-927042-13-7 Multiplication When you multiply a number by 10, 100, or 1000, just add the same number of

11ISBN: 978-1-927042-13-7 Canadian Curriculum MathSmart (Grade 4)

2-digit number x 1-digit numberMultiply the ones. Multiply the tens.

6 x 3 = 18 (Carry 1 ten to the tens column.)

2 x 3 = 6; 6 + 1 = 7

1

2 6x 3 8

1

2 6x 3 7 8

Find the answers.

S T U

V W X

1 3x 2

2 4x 4

1 8x 3

9 8x 6

7 9x 1

3 2x 5

Y 6 x 21 = Z 73 x 4 =

a 5 x 49 = b 26 x 8 =

c 83 x 2 = d 37 x 7 =

e a. 5 helmets cost $ .

b. 8 helmets cost $ .

f a. 15 pairs of knee pads cost $ .

b. 34 pairs of knee pads cost $ .

S o m e t i m e s y o u need to carry more than 1 ten to the tens column.e.g.

Though the order of mul t ip l icat ion h a s changed, the product is the same.e.g. 2 x 14 = 14 x 2

3 6x 7 2 5 2

4 4 tens

Page 4: Multiplication€¦ · 10 Canadian Curriculum MathSmart (Grade 4) ISBN: 978-1-927042-13-7 Multiplication When you multiply a number by 10, 100, or 1000, just add the same number of

12 Canadian Curriculum MathSmart (Grade 4) ISBN: 978-1-927042-13-7

3 Read what Uncle Jeffrey says. Then help him write the numbers.

How many cookies are there in 4 boxes?

g Multiply the ones. Multiply the tens. Multiply the hundreds.

Carry 1 ten to the tens column.

There are cookies in 4 boxes.

1 1

1 3 4 x 4 6

1

1 3 4 x 4 3 6

1

1 3 4 x 4

Find the products.

h i j 2 1 3 x 3

3 7 5 x 4

5 1 9 x 5

k 183 x 6 = l 274 x 9 =

m 408 x 8 = n 812 x 7 =

1st Multiply the ones.2nd Multiply the tens.3rd M u l t i p l y t h e

hundreds.

3-digit 1-digitnumber number

x

Look at the boxes of cereal. Then complete the tables.

o

p

No. of Boxes 3 7 8 9

Total weight (g)

No. of Boxes 2 5 6

Total weight (g)

C a r r y 1 hundred to the hundreds column.

Page 5: Multiplication€¦ · 10 Canadian Curriculum MathSmart (Grade 4) ISBN: 978-1-927042-13-7 Multiplication When you multiply a number by 10, 100, or 1000, just add the same number of

13ISBN: 978-1-927042-13-7 Canadian Curriculum MathSmart (Grade 4)

3q Uncle Philip can make 18 pizzas in an hour. How

many pizzas can he make in 9 hours?

He can make pizzas.

r If 325 pizzas are sold every day, how many pizzas will be sold in a week?

pizzas will be sold.

s If Mrs. Venn buys 15 medium-sized pizzas and 8 large-sized pizzas, how much does she need to pay?

She needs to pay $ .

Answer the questions.

Q u e s t i o n s is a two-step problem. Use multiplication f i r s t ; then use addi t ion to f ind the total.

x

x

x

x

Answer the question.

How many slices of pizza weigh about 800 g?

136 g slices of pizza