10 less
Subtract
Count Backwards by 1
Count Backwards by 10
Subtracting Back
100

10 less than 20

10

100

60-30

30

100

Count backwards by 1 starting at 107-102

107, 106, 105, 104, 103, 102

100

Start counting at 50 and count back by 10s to 20

50, 40, 30, 20

100

How many do you subtract from 16 to reach the previous multiple of 10?

6

200

10 less than 50

40

200

80-20

60

200

Count backwards by 1 starting at 56-51

56, 55, 54, 53, 52, 51

200

Start counting at 80 and count back by 10s to 40

80, 70, 60, 50, 40

200

How many do you subtract from 76 to reach the previous multiple of 10?

6

300

10 less than 90

80

300

70-50

20

300

Count backwards by 1 starting at 93-88

93, 92, 91, 90, 89, 88

300

Start counting at 94 and count back by 10s to 34

94, 84, 74, 64, 54, 44, 34

300

How many do you subtract from 81 to reach the previous multiple of 10?

1

400

10 less than 62

52

400

90-40

50

400

Count backwards by 1 starting at 35-25

35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25

400

Start counting at 106 and count back by 10s to 66

106, 96, 86, 76, 66

400

How many do you subtract from 104 to reach the previous multiple of 10?

4

500

10 less than 76

66

500

95-50

45

500

Count backwards by 1 starting at 114-106

114, 113, 112, 111, 110, 109, 108, 107, 106

500

Start counting at 113 and count back by 10s to 83

113, 103, 93, 83

500

How many do you subtract from 118 to reach the previous multiple of 10?

8