What is the next number in the following sequence?
15, 78, 456, 2724...
Hint: Two operations (out of adding, subtracting, multiplying, dividing) are needed to get to the next term.
Thursday, 26 March 2015
Sequence Solution
16, 332 is the next number. The term-to-term rule is subtract 2 then multiply by 6.
Friday, 20 March 2015
Domino Jigsaws ****
Can you arrange a set of dominoes (up to double sixes) onto these mats. Each number refers to the number of dots on
each domino.
4
|
5
|
3
|
1
|
3
|
3
|
3
|
3
|
0
|
5
|
5
|
1
|
0
|
3
|
1
|
1
|
0
|
0
|
0
|
1
|
4
|
4
|
6
|
6
|
1
|
1
|
6
|
3
|
1
|
2
|
2
|
3
|
0
|
4
|
4
|
2
|
4
|
4
|
4
|
2
|
5
|
5
|
5
|
5
|
0
|
0
|
6
|
6
|
2
|
2
|
6
|
6
|
2
|
2
|
6
|
5
|
Countdown Solutions
Using the numbers 2, 3 and 6, and any of the four mathematical operations:
6 + 3 + 3 = 11
2 x 3 + 6 = 12
6 x 2 + 3 = 15
6 + 3 - 2 = 7
6 x 3 + 2 = 20
3 x 2 x 6 = 36
6 - 3 - 2 = 1 or (6/3) / 2 = 1
6 - (3 - 2) = 1
(3 + 6) x 2 = 18
(6 + 2) x 3 = 24
You might have found some different solutions that work as well.
(6 + 2) x 3 = 24
You might have found some different solutions that work as well.
Friday, 6 March 2015
Multiple Choice Maths **
Find the answers to these problems. Challenge yourself to calculate the solutions mentally.
1. A tree was planted in 1998. How
old will it be in 2020?
A – 12 years old
B – 22 years old
C – 32 years old
D – 42 years old
2. Which number is nearest to 1000?
A – 909
B – 960
C – 1039
D – 1049
3. What is half of 56?
A – 29
B – 28
C – 27
D – 26
4. My book has 144 pages. I have read 40 pages. How many pages do I need to read
until I am halfway through the book?
A – 31 pages
B – 32 pages
C – 72 pages
D – 188 pages
Subscribe to:
Posts (Atom)