NCEA+Level+1+Number

=Last minute skill check: Teacher Ms Allan=

=To add GST multiply by 1.15= the 1 is for the original amount, the .15 is 15% GST Eg: $50 plus GST = 50 X 1.15 = 57.5 giving the answer of $57.50

=To take GST off an amount divide by 1.15= Eg: if $115 is the sale price including GST, the price excluding GST is 115/1.15 = 100 giving an answer of $100

=To get a percentage of an amount= multiply the amount by the percentage and divide by 100 Find 24% of 87m, 87x24/100 = 20.88, round to 21m [including units]

=To get a fraction of an amount= multiply the amount by the top number, then divide by the bottom number. Find 2/7 of $87, 87x2/7 = 24.85714 rounding to $24.86 [including units]

=To split a number by a ratio= Take the number you are spliting and times by the first ratio number then divide by the ratio numbers added together. Take the number you are spliting and times by the second ratio number then divide by the ratio numbers added together. The order of the values matches the order of the words in the question. Your answer should be in the same order. Split 40 people into a ratio of girls to boys of 3:5; 3+5=8; 40*3/8 = 15; 40*5/8 = 25 Ans 15:25 15 girls; 25 boys





Skills Check [] [] [NCEA Question]

=Here are sample Questions and Answers to Practice the story type of question=

[one possible answer]





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[] Check out this entire free book: [] And Video [] Ratio calculator for Josh! - has 3 sheets - check out the TABS at the bottom

And a special calculation Can you now find out how much room the average (music) album takes? How many photos or videos an ipod can store?