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Posts tagged with multiplication

Easy Speed Multiplication


Fast way to learn your tables


In every math classroom there are some students who have struggled or are struggling to learn their multiplication tables. Even with phones handy, printed tables on card, and calculators the ability to quickly rehash basic multiplication facts fast is a great asset. Knowing your tables is, in our humble opinion, a confidence cornerstone for all […]

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Those pesky times tables again…


MATHS heads a back-to-basics curriculum revamp in Government proposals we told you of yesterday, under which pupils will be taught mental arithmetic, fractions and times tables from age five. Here a TV maths expert explains why she backs the plans.  Elementary maths is so important — especially now. You need maths to go on to […]

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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)?]

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