A digit has fallen off the 3rd door in a row of houses. What is the value of the missing digit?
Answer: 2
Marks:
Maya and Sam are playing cards. They each have 3 cards. (a) By adding the numbers on Maya’s cards together, how many even groups of 10 can she make? (b) Which card should Sam remove to make an even group of 10?
/1 Maya’s cards
Sam’s cards
Answers: (a) 3
(b)
Bobby’s teacher brought 127 seashells into school. What is the value of (a) the digit 1 and (b) the digit 7 in the number 127?
Puzzle power
From a box of 159 Lego bricks: 1. How many hundreds are there?
2. When you take away the hundreds, how many tens are left?
3. When you take away the tens, how many units are left?