Order of Operations Using an Area Model
❶ Write an expression for each total area ... and then complete the calculation with two more lines of working.
a)
b)
c)
d)
e)
❷ ... and the same again but if you have an area like 3 × 3, write it as 3²
a)
b)
c)
d)
e)
❸ Draw out these expressions and calculate their value.
a) 3 × 2 + 4 × 5
b) 5 × 2 + 4 × 2
c) 3 × 6 + 5 × 3
d) 3² + 2 × 4
e) 2 × 5 + 4²
f)
g) 2 × 3 + 3 × 4 + 7 × 2
h) 5 × 3 + 4² + 3 × 6
3² + 2²
❹ Write an expression for each total area ... and then complete the calculation with two more lines of working.
a)
b)
c)
d)
e)
c)
d)
e)
❺ ... and the same again but more complex.
a)
b)
❻ Draw out these expressions and calculate their value.
a) 6 × 5 - 2 × 3
b) 7 × 5 - 4 × 3
c) 4 × 3 - 2²
d) 4² - 3 × 2
e) 6 × 6 - 2 × 4 - 3 × 2
f)
g) 5 × 4 - 2² + 3 × 2
h) 4 × 6 - 3 × 2 + 3²
5² - 3 × 2 + 4²
© 2020 Segar Rogers