1) Find the mistake that has been made in the calculation below. Explain and correct it.
2) What number goes in the missing box? Convince me.
3__x 4 = 140
1) Miss Wood orders some new whiteboard pens for Year 5 and 6. There are 160 children in Year 5 and 6. If she orders 6 boxes of 27 pens, will she have enough? Show your calculation.
2) In one month, Charlie read 814 pages in his books. His mum read 4 times as much as Charlie which was 184 pages more than Charlie’s dad. How many pages did they read altogether? Use a bar model to help.