Grade DE BIDMAS Understand use the order of

Grade D/E BIDMAS Understand use the order of operations If you have any questions regarding these resources or come across any errors, please contact helpful-report@pixl. org. uk

Key Vocabulary Brackets Indices Division Multiplication Addition Subtraction Operations

How to use the order of operations 4 + 2 x 9 7 - 2 x 3² = 4 + 18 =7– 2 x 9 = 22 = 7 - 18 = - 11 6 x 3 – (8 + 2³) 3 x 3² – (11 + 2) = 6 x 3 – (8 + 8) = 6 x 3 – 16 = 18 - 16 =2 = 4 x 3² - 13 = 3 x 9 - 13 = 27 - 13 = 14

Now you try using the order of operations (a) (4 + 3) x 9 (b) 5 x 9 - 5 (c) (5 + 11) ÷ 8 (d) 5 x 3² + 5 (e) (9 – 1³) x 5 (f) 6³+ (5 x 2) – 3 (g) 2 x (81 – 3³) ÷ 2 (h) 9 x (18 ÷ 2) ÷ (3²) – 1) (i) (9 + 6 x 4) ÷ 10 – 1. 3

Now you try using the order of operations (a) (4 + 3) x 9 = 63 (b) 5 x 9 - 5 = 40 (c) (5 + 11) ÷ 8 = 2 (d) 5 x 3² + 5 = 50 (e) (9 – 1³) x 5 = 40 (f) 6³+ (5 x 2) – 3 = 226 (g) 2 x (81 – 3³) ÷ 2 = 54 (h) 9 x (18 ÷ 2) ÷ (3²) – 1)= 8 (i) 10+ (9 + 6)² ÷ 5 = 55

Problem solving and reasoning Put the brackets into each sum to make the statements true a) b) c) d) e) 7 x 9 + 5 x 6= 588 9 x 32 + 77 – 3 x 9= 747 85 – 8 x 5 + 75= 120 15 + 92 ÷ 10 – 1= 24 122 x 62 – 62 ÷ 2= 72 Sally says that 3 + 4 x 5²= 175 is she correct?

Problem solving and reasoning Put the brackets into each sum to make the statements true a) b) c) d) e) 7 x( 9 + 5) x 6= 588 9 x 32 + (77 – 3) x 9= 747 85 – (8 x 5) + 75= 120 15 + 92 ÷ (10 – 1)= 24 122 x (62 – 62)÷ 2= 72 Sally says that 3 + 4 x 5²= 175 is she correct? No the answer is 103