Piripi'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 maths test is called bod mas and with this challenge I learnt  
that brackets come first and I also learnt some more of my maths