Subtraction Who wants to be a millionaire

1
Subtraction - Who wants to be a millionaire?

• Are you a super subtractor?
• Can you answer questions correctly?
• Can you think under pressure?
• Are you brave enough to take on a challenge?
• Use any method subtracting you like (in your
  head, on paper, number lines, horizontal,
  vertical . . . .)

Instructions
Start Game
Created by Teresa Devonshire - Silsoe Lower School
2
Instructions

• Work out your answer and then look at the four
  choices.
• Decide which one you think is the correct answer
  and then press the space bar to see if you were
  right.
• If you were correct you can move on to the next
  page by clicking the square with your mouse.
• If not, click the circle instead.
• To leave the game at any time, wiggle the mouse
  so an arrow appears in the bottom left corner.
  Click it and then select end show.

Start Game
3
100 question

• 10 - 4

A. 5
B. 6
B. 6
C. 7
D. 8
I got the answer right.
I didnt get the answer right.
4
200 question

• 20 - 7

A. 3
C. 13
B. 12
C. 13
D. 14
I got the answer right.
I didnt get the answer right.
5
300 question

• 20 16

A. 6
D. 4
B. 14
C. 3
D. 4
I got the answer right.
I didnt get the answer right.
6
400 question

• 20 5 - 4

A. 15
D. 11
B. 14
C. 12
D. 11
I got the answer right.
I didnt get the answer right.
7
500 question

• 50 - 20

A. 10
C. 30
B. 20
C. 30
D. 40
I got the answer right.
I didnt get the answer right.
8
1,000 question

• 100 - 60

A. 40
A. 40
B. 50
C. 60
D. 70
I got the answer right.
I didnt get the answer right.
9
2,000 question

• 52 - 30

A. 32
C. 22
B. 30
C. 22
D. 20
I got the answer right.
I didnt get the answer right.
10
4,000 question

• 98 - 18

A. 90
C. 80
B. 88
C. 80
D. 78
I got the answer right.
I didnt get the answer right.
11
8,000 question

• 47 - 23

A. 24
A. 24
B. 25
C. 26
D. 27
I got the answer right.
I didnt get the answer right.
12
16,000 question

• 100 - 36

A. 76
D. 64
B. 74
C. 66
D. 64
I got the answer right.
I didnt get the answer right.
13
32,000 question

• 300 - 160

A. 140
A. 140
B. 240
C. 160
D. 40
I got the answer right.
I didnt get the answer right.
14
64,000 question

• 376 - 140

A. 266
D. 236
B. 256
C. 246
D. 236
I got the answer right.
I didnt get the answer right.
15
125,000 question

• 2,538 1,435

A. 1,103
A. 1,103
B. 1,301
C. 1,101
D. 1,303
I got the answer right.
I didnt get the answer right.
16
250,000 question

• 3,105 2,050

A. 1,055
A. 1,055
B. 1,500
C. 1,005
D. 1,505
I got the answer right.
I didnt get the answer right.
17
500,000 question

• 5,824 2,618

A. 3,216
D. 3,206
B. 4,216
C. 4,206
D. 3,206
I got the answer right.
I didnt get the answer right.
18
1,000,000 question

• 10,000 2,893

A. 7,207
C. 7,107
B. 8,107
C. 7,107
D. 7,208
I got the answer right.
I didnt get the answer right.
19
You did really well.

• Did you realise where you went wrong?
• Think about that one again.
• Draw a number line on paper to see if that helps.
• When you are ready, click the button to try again.

20
You were so close!

• Did you realise where you went wrong?
• Think about that one again.
• Draw a number line on paper to see if that helps.
• When you are ready, click the button to try again.

21
Congratulations !

• You must be a super subtractor!
• You are a champion!
• Unfortunately the money isnt real - but Im sure
  you can come and collect a sticker for all your
  excellent thinking.