Counting Forwards
What number is next?
100,200,300,___,500,___,700
400,600
What is the missing number?
120,220,320,420,___
520
What is the missing number?
250,350,450,____,650,750
550
What is the missing number?
330,430,530,___
630
What is the missing number?
290,390,490,590,____
690