Year 7 Review

Number

100

17 - - 46 =

63

200

Sing the "Adding Integers" song

Same sides add & keep, different signs subtract

Use the sign of the bigger number, then you'll be exact!

300

- 15 + 43 - 22 =

6

400

(63 - - 29) + - 80 =

12

500

(-3) x (-4) x (-5) =

-60

FDP

100

2/5 + 1/2 =

9/10

200

2/3 of 21 =

14

300

64.8 + 12.3 =

77.1

400

Convert 12/25 to a decimal and a percentage

0.48 / 48%

500

20% of 65 =

13

Algebra

100

5 + 12a + 4b - 3a + 2b =

9a + 6b + 5

200

11ab + 2b - 3ba - 4a + b - a =

-5a + 3b + 8ab

300

Expand -2(3a - 4) =

-6a + 8

400

-5a²b³ / 15a³b² =

-b/3a

500

Factorise -2x + 4xy - 8x² =

-2x(1 - 2y + 4x)

Measurement

100

Calculate the area of a parallelogram with height 2cm and perpendicular base 4cm

A = 8cm²

200

Calculate the perimeter of a square with side length 3.3 cm

P = 13.2 cm

300

Calculate the area of a triangle with height 6cm and perpendicular base 5cm

A = 15cm²

400

Convert 0.2mm to km

200,000km

500

A diagram of a house is composed of a square and an equilateral triangle on top. The base length of the triangle is 4cm and the height of the entire house is 9cm. Draw a diagram and calculate the perimeter & area of the house.

P = 20cm

A = 26cm²

Angles

100

Find the complement of 36^o

90^o - 36^o = 54^o

200

Find the supplement of 128^o

180^o - 128^o = 52^o

300

Draw and list the characteristics of an acute, right, straight, obtuse, reflex and revolution angle.

Acute = Between 0^o and 90^o, Right = 90^o, Obtuse = Between 90^o and 180^o, Straight = 180^o, Reflex = Between 180^o and 360^o, Revolution = 360^o

400

Three angles with size 34^o, 141^o and a^o meet at a point. Calculate the size of angle a^o

a^o = 185^o

500

Angles with sizes 59^o, 91^o, 162^o, a^o, a^o and a^o meet at a point. Calculate the size of angle a^o

a^o = 16^o