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Tuesday, 5 April 2016

Maths - follow up code breaker

Rounding Code Breaker

LI: to round whole numbers to the nearest 1, 10 and 1000.

A
B
C
D
E
F
G
H
I
400
450
55
510
0
550
22,000
900
10

J
K
L
M
N
O
P
Q
2000
200
56
40
940
100
3000
3300

S
T
U
V
W
X
Y
Z
1400
1000
990
1320
520
1
4000
9999

Answer the following questions to crack my code.
Note: the order of the letters in each word has been muddled up.

Question
Answer
Letter
387 is between 300 and _______.
400
A
1489 is between ________ and 1500.
1400
S
980 is between 900 and _______.
1000
T
32 is between 30 and _____.
40
M
863 is between 800 and ________.
900
H

Round 7 to the nearest 10
10
I
Round 1420 to the nearest 100
1400
S

Round 3,522 to the nearest 1000
4000
Y
Round 35 to the nearest 10
40
M

Round 1318 to the nearest 10
1320
V
Round 995 to the nearest 10
1000
T
Round 12.6 to the nearest 10
10
I
Round 430 to the nearest 1000
0
E
Round 52 to the nearest 100
100
O
Round 554 to the nearest 10
550
F
Round 5,555 to the nearest 1000
6000
R
Round 397 to the nearest 10
400
A
Round 994 to the nearest 10
990
U

Round 1970 to the nearest 100
2000
J
Round 54.69 to the nearest whole number
55
C
Round 1429 to the nearest 1000
1000
T
Round 45 to the nearest 100
0
E
Round 986 to the nearest 10
990
U
Round 452.9 to the nearest 10
450
B
Round 1363 to the nearest 100
1400
S

The answer:

MATHS / IS / MY / FAVOURITE / SUBJECT.

This is my code breaker task. I had to answer some math questions then find out the word for that number. I really enjoyed doing it is so far my favourite maths activity follow up. I learnt how to crack a rounding code breaker.

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