Measurement tasks for Friday 5 March 2021
Try to solve the problems independently.
You may use diagrams to explain your thinking.
We will discuss as a group what strategies you used to solve the problems
WALT: use multiplicative and/or additive strategies to solve measurement problems.
A student measures her height with a 30 cm long ruler. She finds that she is four and a half rulers high. How tall is she in cm? 135cm
A student is told that they are 1.45 m tall. How tall is this in cm? 145cm
If it takes 3 hours to drive 210 km, what was the average speed of the journey? 70 km/ph
A class of 28 is split into small groups. How big can those groups be? 2 and 4
A car, travelling at an average speed of 70 km/ph is in a journey of 210 km.
How long will the journey take? 3 hours
A long distance swimmer takes 80 strokes to swim 100 metres. He wants to swim across Lake Taupo, a distance of 4200 metres. If he wants to swim lake Taupo he would need to do 32160 strokes to swim 4200 metres
a. How many strokes will it take for him to swim across the lake? 3360 strokes
b. If he can swim at a rate of 60 strokes per minute, how many minutes could he swim across the lake in? 56 minutes
c. Can he expect to beat the 2015 champion swimmer who crossed the lake in a time of 51 minutes and 48 seconds? No because if he does 60 strokes per minute he would finish in 3060 strokes
These problems are taken from NZMaths
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