expanded form
standard form
Adding
subtracting
100

the expanded form of 

79

What is

70+9

100

The standard form of 80+5

What is 85

100

33+7

What is 40

100

20-5

What is 15

200

The expanded form of 947

What is 

900+40+7

200

The standard form of 40+5

What is 45

200

9+9

What is 18

200

30-15

What is 15

300

The expanded form of 4,096

What is 

4,000+90+6

300

The standard form of 700+50+3

What is 753

300

21+8

What is 29

300

300-100

What is 200

400

the expanded form of 84,157

What is 

80,000+4,000+100+50+7

400

The standard form of 7,000+600+3

What is 7,603

400

15+15

What 30

400

75-50

What is 25

500

the expanded form of 963,704

Was is 

900,000+600,000+3,000+700+4

500

The standard form of 90,000+6,000+300+40+5

What is 96,345

500

50+50

What is 75

500

100-0

What is 100