Number.  Writer: writes answers on whiteboard  Thinker: on paper/in head.  Resources Manager: looks up notes/textbooks  All members: ensure group.

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Presentation transcript:

Number

 Writer: writes answers on whiteboard  Thinker: on paper/in head.  Resources Manager: looks up notes/textbooks  All members: ensure group is positive & working at a reasonable noise level.  All people must participate. Random checks may be made to ensure all group members know how to get their correct answer. (Bonus points available for this)

 Group x chooses the question  Time limit given  When time is up, group x has 1 st option to answer.  If correct winner takes all points.  If incorrect, all other correct groups get half points.  Next group in turn (clockwise).

MoneyFractionsPercentagesIntegers & time

 Joe buys a shirt in a 15% off sale. It’s normal price was $18. What will Joe pay?

 What would 7 books at $4.65 cost in total?

 Share $63 in a ratio of 3:5:1

James invests $500 in an account with a 6% interest rate (p.a). How much will James have after 10years (assume interest is compounded yearly)

 Last year, beef exported to the USA was earning US $2.29/kg. The total revenue from beef export to the USA was NZ $978.2million.  A) The exchange rate was NZ$1:US$0.515 How much beef was exported to the USA?  B) In total 5.6x108kg of beef was exported around the world. What % of this went to the USA?

Simplify your answer

 A chocolate factory increased the weight of their chocolates from 84g to 96g. Express the increase in weight as a fraction (simplify)

 Jean has a 2L bottle of orange drink. 3/5 of it is orange juice and the rest is water (well mixed!)  Jean drinks 1/8 of the bottle and then fills it up with water.  What fraction of the of the bottle is water now?

 After a price increase of 2/15, a saw now costs $ What was the price before the increase?

 Robyn is renovating her bathroom. The area to be tiled is 9m 2. She has chosen tiles which come in boxes of 40 at $65 a box; 36 tiles cover 1m 2. Tiles cannot be sold seperately. Her DIY book advises buying 8% extra tiles to cover breakages and cutting halves.  A) Robyn follows the advice of her book. Calculate the cost of the tiles for the bathroom.  B) Robyn used only 330 tiles on the job. She wants to use the leftover tiles to cover an area in the toilet. What fraction of a square metre will she be able to tile assuming she doesn’t break any tiles.

Find 25% of 160kg

Cheryl got 18 out of 25 in a recent math test. What percentage is this?

 GST is 15%. What would the price of a car be (including GST) if it costs $27300 before GST?

 18% of a volume is 450mL. What is the total volume?

A car dealer offers a car for $39995 cash or $2000 deposit with weekly repayments of the balance plus 14% pa of the original remaining balance for 5 years. A) What percentage of the price is the deposit? B) How much extra is paid in total with the weekly repayment scheme? C) How much is each weekly payment?

 How many seconds in 8 minutes?

 285÷5 57

 Explain why -5 2 and (-5) 2 are different.

 Hemi & Jake share a job clearing Mrs McDonald’s garden. Hemi worked for 5h 45min, Jake worked for 2h 20min.  A) Write the ratio of Hemi’s time to Jake’s time in simplest form  B) Mrs McDonald paid $75 cash for the job. What is Hemi’s share?

 Two numbers (x & y) add to 87 and have a difference of 29.  A: Use this information to write two equations.  B: Solve the equations to find x and y.