Estimating sweets and buses

This task is about estimating with multiplication questions.

Question 1Change answer

illustration: sweets

a)  A class of 21 students each bought a packet of sweets.
     Each packet had 38 sweets in it.
i)  An estimate for the total number of sweets is
ii) Explain how you made this estimate.

Question 1Change answer

 
b)  A school has 1217 students to get to a sports ground using buses.
     Each bus can carry 41 students. 
i)  An estimate for the total number of buses needed is
ii)  Explain how you made this estimate.