Level 3
Using 7, 8, 9, 0. find the missing digits A B and C D. Give your answers in numbers. (Eg 12, 34)

4 5 A B + C D = 4668
3 m
Level 3
I am a 4-digit number. The digit in the hundreds place is 6 less than the ones place. The digit in the tens place is 3 more than the thousands place. Which of the following numbers am I?
5288, 2523, 5427
4 m
Level 3
Some adults were at a concert. After 664 women and 2755 men left the concert hall, there were 521 adults left. How many adults were there at the concert hall at first?
4 m
Level 3
Cathy, Doris and Ella have some beads. Cathy has 285 beads and Doris has 725 beads.
  1. How many beads do Cathy and Doris have?
  2. The total number of beads that Cathy and Ella have is 2653. How many beads does Ella have?
4 m
Level 3
There were 630 people at an event. 214 of them were men, 136 were women and the rest were children.
  1. How many adults were there?
  2. How many children were there?
4 m