Welcome to H3 Maths

Blog Support for Growing Mathematicians

Archive for December, 2012

Depth (noun)…

December15

…a dimension taken through an object or body of material,usually downward from an upper surface, horizontally inward from an outer surface, or from top to bottom of something regarded as one of several layers. Depth has different meanings, depending on how tall you are!

by posted under Uncategorized | tagged under , ,  |  Comments Off on Depth (noun)…

Fast Squaring – this is cool and will impress your friends!

December14

If we need to find the square of a number that ends in a “5”, such as 75, we can use this fast system to impress our friends (or ourselves!) Step 1: If the last digit is 5, then the square of those numbers always ends with 25. So the last two digits of 75 […]

by posted under Uncategorized | tagged under ,  |  Comments Off on Fast Squaring – this is cool and will impress your friends!

South East Asian Students top Maths Results

December12

TIMSS is an international assessment of mathematics (and science) at the fourth and eighth grades that has been conducted every four years since 1995. Here is a brief summary of the 2011 results. You can download the Executive Summary here. “In total, more than 600,000 students participated in TIMSS 2011. TIMSS 2011 continues the series […]

by posted under Uncategorized | tagged under ,  |  Comments Off on South East Asian Students top Maths Results

Learn your Multiplication Tables or else!

December10

That’s right – you need to learn your Multiplication Tables (up to 12×12) or else you WILL certainly fail in Maths! If you have the basic multiplications in your memory then you are able to handle most high school maths problems. If you need to download a copy of the multiplication tables, check out this […]

by posted under Uncategorized | tagged under  |  Comments Off on Learn your Multiplication Tables or else!

Maths ability unlocks academic future

December9

“Literacy has always been a big feature of New Zealand’s highly rated early-education curriculum. But now a United States scholar and expert on child development says the true indicator of how well a child will do when they enter school is their maths ability. If you want to advance your preschooler’s chances of doing well […]

by posted under Uncategorized | tagged under  |  Comments Off on Maths ability unlocks academic future

Hammer that math nail into place!

December8

An interesting story looks at how a carpenter has designed the program “If I had a hammer” to help younger students grasp the important, practical aspects of real-life Mathematics. More here.

by posted under Uncategorized | Comments Off on Hammer that math nail into place!

Functions in a theme park…

December6
by posted under Uncategorized | tagged under , ,  |  Comments Off on Functions in a theme park…

12 Days of Christmas and Pascal

December6

Click here for a look at how Pascal’s Triangle relates to the 12 Days of Christmas:

by posted under Uncategorized | tagged under , , , ,  |  Comments Off on 12 Days of Christmas and Pascal

Geometry 101

December5

Here is a great tip to improve your Geometry skills – always add these extra labels to your axes – they will help you solve graphs far more easily!! Trust me, this is another H3 tip that DOES make a big difference in your Mathematics!! Note 1: The y axes has the equation x=0. For […]

by posted under Uncategorized | tagged under , , , , ,  |  Comments Off on Geometry 101

Get a better maths kid by midnight

December3

Yes, there are some cool tips to grow better math students. Here is the first one – learn these squares and cubes, especially the highlighted ones. For the cubes, it actually is quite rhythmical when you say them aloud – “four 4’s are 16, 16 fours are 64” “five 5’s are 25, 25 fives are […]

by posted under Uncategorized | tagged under , , ,  |  Comments Off on Get a better maths kid by midnight
« Older EntriesNewer Entries »

Post Support

Largest number between o and 1 million which does not contain the ‘n’ is 88

 

Rotation SAT Problem: Answer: 4 (see: https://www.youtube.com/watch?v=FUHkTs-Ipfg)

 

Which number has its letters in alphabetical order? Answer: F O R T Y

Hidden Rabbit? Clue: check the trees

How long for the stadium to fill? 45 minutes.

Where are you? the North Pole

Prize Object Puzzle: If Sue does not know where the prize is in the first question, it can’t be under the square. She must have been told it is under another shape. Apply this same logic to Colin. It is then obvious that the prize cannot be under a yellow object. That helps Sue eliminate her yellow shapes. Got the idea?

Algebra Puzzle: Answer = 1

Popular Math Problems Answers: 1, 1

Number of tabs? According to Lifehacker, the ideal number of tabs you should have open is nine. Yes, a single digit. To some, this is like playing a piano and only using a fraction of the notes!

Worst Graph? Where to start. What a visual mess and even some of the lines merge and are impossible to follow. A graph is a visual display of data, with the goal to identify trends or patterns. This is a spider’s web of information which fails to show a clear pattern at all. Solution? Well, different colors would help, or why not group in two or three graphs where trends are similar?

Number of different nets to make a cube is eleven – see this link

Homework Puzzle; The total value of the counters is 486, so halve this to get 243. Now, arrange the counters to equal this amount twice.

The graph on the left (Coronavirus) is for a time period of 30 days, while the one on the right (SARS) is for 8 months! Very poor graphical comparison and hardly relevant, unless it is attempting to downplay the seriousness of the coronavirus?

10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

Archives

H3 Viewers



Skip to toolbar