Simple patterns and missing numbers
"Look for what changes each step," says Ollie. "That's the rule."
1. Continue the pattern (add 2 each time): 2, 4, 6, ,
2. Continue (add 5 each time): 5, 10, 15, ,
3. Find the missing number. Use adding to check.
a) 10 + □ = 16 □ = b) □ + 5 = 12 □ =
4. What is the rule for 3, 6, 9, 12? Add each time.