Converting Metric Units of Length

Remember,

10mm=1cm
so to change mm into cm divide by 10.
To change cm into mm, multiply by 10

100cm=1m
so to change cm into m, divide by 100.
To change m into cm, multiply by 100

1000m=1km
so to change m into km, divide by 1000.
To change km into m, multiply by 1000

  1) 20mm =____cm              2) 40mm = _____cm

 3) 45mm = ____cm              4) 65mm = _____cm

5) 120mm = ____cm             6) 215mm = ____cm

7) 5cm = ____ mm                  8] 9cm = ____mm

9) 1.5cm = ___mm                  10) 3.2cm = _____mm

11) 12cm = ____mm              12) 21cm = ____mm

13) 1m = ____cm                   14) 1.25m = ____cm

15. 1.5m = ____cm                  16) 2.3m = ____cm

17) 200cm = ____m                18) 300cm = ____m

19) 150cm = ____m                  20) 245cm = ____m

21) 1000m = _____km            22) 3000m = ______km

23) 1500m = ______km           24) 10,000m = ______km

25) 500m = ______km             26) 750m = ______km

27) 2km = _____m                     28) 1.5km = _____

29) 1.33km = _____m                30) 12km = _____m

 

SHOW YOUR WORKING!  (see the yellow rectangle below for an example)

31) The wooden part of a pencil is 17.5cm long, and the eraser on the end is 6mm. How long is the pencil altogether?

32) Paul is 1.58m tall. Michelle is 9cm talker than Paul. How tall is Michelle?

33) Cam is running a 10,000m race. He has run 9km so far, how far does he have to go?

34)A soccer field is 100m long. How many soccer fields end to end make 1km

 

Angles Revision

1. Visit this website and go through all of the activities. 
2. Visit this website and play Banana Hunt three times
3. In your maths book, draw the following angles;

 a)45˚            b) 90˚            c) 60˚        d) 120˚        e) 140˚    

 Extension   

f) 210˚           g) 270˚          h) 320˚

Area and Perimeter

Find the perimeter and area of the following. Write your answers in your maths book and remember to show all your working.

1.A piece of A4 paper

2.The front cover of your laptop

3.The trackpad on your laptop

4.One floor tile in your classroom

5.One floor tile in WAB Way

6.The carpet in your classroom

7. If the schools swimming pool is 30m long and 15m wide, what is the total surface area of the pool?

Use Google Earth to find the perimeter and area of the following; If don’t know how to use Google Earth to measure distance, watch this video.

8.Tiananmen Square ( 39°54’10.49″N  116°23’28.10″E)*

9.The Forbidden City (39°54’59.26″N 116°23’25.95″E)*

10. The Reflecting Pool at the Lincoln Memorial (Find it yourself:-)   

*To find a location on Google Earth using latitude and longitude coordinates, just copy and paste the coordinates into the search bar on Google Earth. For example for Tianenmen Square you would paste in 39°54’10.49″N  116°23’28.10″E

Fractions of a Whole Number

Copy these questions into your maths book and answer. See the worked examples in the box to see how to show your working. 

1) 1/2 of 20            2) 1/3 of 15            3) 1/5 of 20        4) 1/7 of 14        5)2/5 of 30            6) 3/4 of 24           

7) 5/6 of 30        8] 2/3 of 15            9)1/4 of 20cm        10) 1/5 of 130RMB    

Open this PDF Fractions of a Whole Number and complete the questions in your maths book.

Worked Examples. 1/3 of 18 =18÷3×1 =6×1 =6   3/4 of 24 =24÷4×3 =6×3 =18

 

 

Inverse Operations-Fact Families

Write the fact families for these numbers using addition and subtraction. If you have forgotten what a fact family is, look at the bottom of this page in the yellow rectangle. 

1) 4+7=11            2) 5+9=14                3) 34-10=24                4) 40-16=24            5) 3+A=9

 6) 12-A=5            7) A+B=C                8) F-D=8

Write the fact families for these numbers using multiplication and division. If you have forgotten what a fact family is, look at the bottom of this page. 

9) 3×2=6            10) 6×5=30            11) 45/9=5            12) 48/6=8            13) 4xA=12          14) 6xA=18           

15) AxB=C

Multiplication Revision

Make sure to show your working. Forgotten how? Watch this first.

1)32×5

2) 21×5

3)25×31   

4) 32×12

5)364×51  

6) 215 x52

7)*243×165

 8) Andrea saves 9 RMB each week. How much money would she have saved in 45 weeks?

 9) Movie night cost 35RMB per child. If 107 children paid to come movie night, how much money was collected altogether?

 10) If one packet of M&M’s has 57 M&M’s, how many M&M’s are there in 125 packets?

 * Extra-only do it if you know how.

3 Digit by 1 Digit Division

If you have forgotten how to do these, watch this first.

Copy and complete these questions in your maths book.

1. 132 ÷ 6 =            2.  374 ÷ 9 =

3. 849 ÷ 4 =           4. 757 ÷ 5 =

5. 216 ÷ 3 =            6. 875 ÷ 2 =

7. 461 ÷ 6 =            8. 639 ÷ 8 =

9. 323 ÷7 =            10. 572 ÷ 4 =

11.  650 ÷ 3 =        12.  925 ÷ 6 =

13. 487 ÷ 8 =        14. 234 ÷ 2 =

15. 496 ÷ 7 =       16. 568 ÷ 4 =

17. 1426 ÷ 7 =      18. 3746 ÷ 3 =

 

Adding and Subtracting up to 2 Decimal Places

Solve these problems in your math book.
Make sure to always write the problems out vertically first with the decimal places lined up.
Forgotten how to do these? Watch this first.

1)3.6+6.4
2) 1.2+6.7
3) 4.29+4.31
4) 92.5+43.8
5) 91.64+15.28
6) 5.9-2.3
7) 4.1-3.9
8] 12.1-5.8
9) 6-1.5
10) 8-5.12

EXTENSION:
11)3.4+5.2+12.6
12) 4.65+8.1+4.03
13) (3.5+0.2+1.65)-2.41

Using Rounding to Estimate

If you don’t know how to do the working, see the worked example in the yellow rectangle below the questions. 

 Round to the nearest 10 and then complete. Make sure your working is done correctly. 

1) 39+21

2) 64+23

3)59+92

4) 132+34

5) 412+109

6) 396+421

 Round to the nearest 100 and then complete. Make sure your working is done correctly. 

7) 210+490

8} 443+559

9) 760-310

10) 4,214-290

11) 3,521+1,478

12) 2,145-1,345

 Round to the nearest 1,000 and then complete. Make sure your working is done correctly. 

13) 2,400+4,375

14) 4,230+7,243

15) 13,258+34,254

16) 13,543-9,453

 Round to the nearest 10,000 and then complete. Make sure your working is done correctly. 

17) 61,200-49,530

18) 34,254+21,430

19) 143,670-21,456

20) 39,540+108,400

21)If Beijing has a population of 10,930,423 and Shanghai has 13,243,560 estimate their total combined population. Choose a sensible place value to round your answer to.

 Finished early? Try playing this

 

Face, Place and Total Value

Total value= face value x place value.

For example in the number 57,432 the face, place and total value of the “7” would be;

Face=7, Place=1000’s, Total=7000

If the face value is “0” then the total value is “place holder” (PH for short)

For example in the number 3,000

face=0, place=hundreds, total=Place Holder (PH)

Give the face, place and total value of the red digit in the following numbers. 

 1)426                2) 5,423                3) 567,934            4) 43,706            5) 100,080

 6)12,435,765        7) 54,257,981        8) 31,568,045        9) 245,326,987        10) 3,223,545,000

Finished early?

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