Tuesday, 22 October 2013
Tuesday, 15 October 2013
Isaac's BODMAS: Linear Equations
LI: To solve linear equations that involve brackets
Remember the sequence of operations (BODMAS) – it will help!
Challenge 1
1.) (20 + 12) x 3= 96
2.) (7 + 18) x 4= 100
3.) (25 – 9) x 5= 80
4.) 2 x 3 x 5= 30
5.) (2 x 3) x 5= 30
6.) 6 x (3+5)= 48
7.) 3 x (3 + 2 + 3)= 24
8.) (20 + 12) x 6= 192
9.) (24 – 12) x 2= 24
10.) (2 + 5 + 3 + 7) x (1 + 3)= 68
11.) (3 x 3) – (2 x 2)= 5
12.) (21 + 3) x (18 + 4)= 48
Challenge 2
1. (4 + 6) x (17-7) = 100
2. 3 x (7 + 5) = 36
3. (100 – 50) + (6 x 2) = 62
4. (4 + 9) x 5 = 75
5. (3 x 7) – (2 x 4) = 13
6. (11 – 6) x (25 ÷ 5) = 25
7. (120 – 70) ÷ (11 – 1) = 5
8. ( 3 + 14 ) + ( 2 + 1 ) = 20
9. ( 5 x 3 ) + ( 5 x 2 ) = 22
10. 3 x ( 10 + 3 ) = 36
Challenge 3
1. (4 - 2 ) x 25 = 50
2. (4 - ) x (5 - ) = 20
3. 30 – ( + ) = 4
4. (30 - ) + ) = 4
5. 30 – ( - ) = 4
Challenge 4
1. (4 - ) x = 50
2. (4 - ) x (5 - ) = 20
3. 30 – ( + ) = 4
5. (30 - ) + = 4
6. 30 – ( - ) = 4
7. 10 + ( - ) = 17
8. 40 + ( + ) = 55
9. (29 - ) x = 64
10. ( + 15) x 2 = 48
11. 70 – ( - 10) = 50
12. ( x 12) - = 27
13. (20 - ) + (40 - ) x = 90
14. 100 – (3 x ) + (4 x ) = 21
This is my Bodmas test this challenge I learnt thatbrackets come first.
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