Level 3
Peter made 76 paper aeroplanes in four days. Each day after the first day, he made 6 more paper aeroplanes than the day before. How many paper aeroplanes did he make on the first day?
Level 3
Adam spends 110 of his money on some marbles
and 35 of his money on some stickers.
Then he buys some beads
and has $80 left.
If he has $600 at first,
how much money does he spend on the beads?
Level 3
Jean spent 5 days making necklaces for her friends. Each day, she managed to make 2 more necklaces than the day before. She made a total of 35 necklaces. How many necklaces did she make on the 2nd last day?