Positive & Negative Numbers

Perimeter

100

What is the total perimeter of a shape with side 11cm, 10cm and 10cm.

31cm

200

A farmer wants to put a fence up. One side of the fence is 12m, the second side is 11m and the third side is 13m. What is the total perimeter of the fence?

36m

300

Oliver wants to measure the perimeter of his bedroom. His bedroom floor is an exact square and one side measures 4m. What is the perimeter of Oliver’s room?

16m

400

If the total perimeter of a square is 70cm, what is the length of each side?

17.5cm

500

The length of a rectangle is 13.6 cm. The perimeter of the rectangle is 37.8cm. Calculate the width of the rectangle

5.3cm

Negative numbers

100

(-4) + 8 =

4

200

(-12) + (-12) =

-24

300

(-50) + (-75) =

-125

400

(-100) + 25  =

-75

500

(-501) + 500

-1

Algebra

100

x + 5 = 15

x = 10

200

73 - x = 36

x = 37

300

4x = 44

x = 11

400

-24 - x = - 34

x = 10

500

3x + 1 = 7

x = 2

Fractions

100

1/2 of 40

20

200

1/6 of 48

8

300

2/3 of 21

14

400

3/8 of 160

60

500

7/9 of 360

280

Percentages

100

50% of 84

41

200

25% of 100

25

300

20% of 70

14

400

40% of 640

256

500

75% of 448

336