Y7 Mathematics

Algebra

100

Simplify
3x + 7y - x + 2y =

2x + 9y

150

I think of a number (n). I add 4 and then multiply by 3. Write an expression

3(n+4)

200

Expand
3X(4X + 3)

12X²+9X

400

Expand and Simplify
4(X-1) - 2(X-2)

2X or 2X + 0

700

I have a rectangle with perimeter 38cm. It has a length 2x+3 and width x+2. Work out the value of x

x = 5

Decimals

100

1.45 + 3.79 = 

5.24

150

0.4 x 0.09 =

0.036

200

10.56 - 3.634 =

6.926

400

1.56 + 2.84 - 0.695 = 

3.705

700

(3.964 / 4 ) x 3

2.973

Fractions

100

1/4 + 5/12 = 

8/12

150

3/5 x 6/7 = 

18/35

200

9/10 - 3/4 =
(simplest form)

3/20

400

1 & 4/5 divided by 1 & 1/2 =
(Simplest form)

6/5

700

1 & 4/6 - 1 & 2/5 x 2/3 =
(Answer as a mixed number in simplest form)

2 & 2/5

Sequences

100

3, 6, 12...
What's the next two terms?

24, 48

150

1,1,2,3,5,8...
Name this type of sequence

Fibonacci 

200

3, 5, 7, 9
Find the Nth term

2n+1

400

7, 2, -3, -8....
What is the 20th term?

-88

700

10, 7, 4, 1
Find the 48th term

-131

Ratio

100

Simplify 12 : 16 : 8

3 : 4 : 2

150

Chai and Fuji share $90 in a ratio 3 : 7. How much do they each get?

$27 : $63

200

Kairi and Adriana share sweets in a ratio 4:7. Kairi gets 20 sweets, how many does Adriana get?

35

400

Mash recipe for 5 people - Potatoes 600g, milk 100ml and butter 10g.
How much of each ingredient do I need for 8 people?

Potatoes - 960g

Milk - 160ml
Butter - 16g

700

Mike, Romy and Kendi share gold coins in a ratio 8 : 9 : 14. Kendi gets 78 more than Mike. Kendi give 50% to Romy. How many does Romy have?

208