HCF LCM Prime Factorisation Card Complete Match In

HCF & LCM – Prime Factorisation – Card Complete & Match In this activity students work individually or in groups to match questions and answers. ‘Quick Cut’ – Choose the questions/slides you wish to use and delete others. Sets of questions can then be easily guillotined to save time. One-sheet sets of cards are also included for students to cut out themselves.

Printing To print handouts from slides Select the slide from the left. Then click: File > Print > ‘Print Current Slide’ To print multiple slides Click on a section title to highlight all those slides, or press ‘Ctrl’ at the same time as selecting slides to highlight more than one. Then click: File > Print > ‘Print Selection’ To print double-sided handouts Highlight both slides before using ‘Print Selection’. Choose ‘Print on Both Sides’ and ‘Flip on Short Edge’.

Match each Venn diagram with a Highest Common Factor or Lowest Common Multiple. Complete each diagram with a number in every box. 3

Half Answers

K 24 30 LCM = 120 LCM = 120 LCM = 120

J 80 48 3 LCM = 240 LCM = 240 LCM = 240

C 150 120 2 2 LCM = 600 LCM = 600 LCM = 600

I 81 LCM = 162 LCM = 162 LCM = 162

L 36 7 HCF = 9 HCF = 9 HCF = 9

D 30 50 HCF = 10 HCF = 10 HCF = 10

A 48 36 HCF = 12 HCF = 12 HCF = 12

G 60 3 5 HCF = 15 HCF = 15 HCF = 15

F 24 2 2 3 LCM = 96 LCM = 96 LCM = 96

E 2 5 2 LCM = 140 LCM = 140 LCM = 140

B 42 28 HCF = 14 HCF = 14 HCF = 14

H 105 2 5 HCF = 35 HCF = 35 HCF = 35

Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths. co. uk