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Name Subject Level Section Exercise Lesson
Sample User Math 1 Patterns and Sequences Find a missing number when counting by 10 167

You have 20 minutes to finish this exercise
Name	Subject	Level	Section	Exercise	Lesson
Sample User	Math	1	Patterns and Sequences	Find a missing number when counting by 10	167

Click on the appropriate choice. When done, click on the submit button.
Find the missing number.
30	40	50
70	80		100
20	30		50
	30	40	50
30	40		60
70		90	100
	70	80	90
70	80	90
40	50		70
20	30	40
10		30	40
	80	90	100
50	60	70
40	50	60
30		50	60
	20	30	40
20		40	50
	60	70	80
60	70		90
40		60	70
	50	60	70
60	70	80
	40	50	60
10	20		40
50	60		80
50		70	80
10	20	30
60		80	90

Find the missing number.
30	40	50
70	80		100
20	30		50
	30	40	50
30	40		60
70		90	100
	70	80	90
70	80	90
40	50		70
20	30	40
10		30	40
	80	90	100
50	60	70
40	50	60
30		50	60
	20	30	40
20		40	50
	60	70	80
60	70		90
40		60	70
	50	60	70
60	70	80
	40	50	60
10	20		40
50	60		80
50		70	80
10	20	30
60		80	90

Find the missing number.
30	40	50
70	80		100
20	30		50
	30	40	50
30	40		60
70		90	100
	70	80	90
70	80	90
40	50		70
20	30	40
10		30	40
	80	90	100
50	60	70
40	50	60
30		50	60
	20	30	40
20		40	50
	60	70	80
60	70		90
40		60	70
	50	60	70
60	70	80
	40	50	60
10	20		40
50	60		80
50		70	80
10	20	30
60		80	90

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Exercise Page

Questionnaire

Find the missing number.
30	40	50
70	80		100
20	30		50
	30	40	50
30	40		60
70		90	100
	70	80	90
70	80	90
40	50		70
20	30	40
10		30	40
	80	90	100
50	60	70
40	50	60
30		50	60
	20	30	40
20		40	50
	60	70	80
60	70		90
40		60	70
	50	60	70
60	70	80
	40	50	60
10	20		40
50	60		80
50		70	80
10	20	30
60		80	90