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100

What is 45+28

73

100

What is 28-15

13

100

3,6,9,12,15,_____

18

100

What is 456?

400+50+6

200

What is 458+31

489

200

What is 87-19=

68

200

35,45,55,65,___

75

200

What is 308?

300+0+8 or 300+8

300

What is 384+58=

442

300

What is 345-133=

212

300

33,36,39,______

42

300

What is 3,453?

3,000+400+50+3

400
What is 3,453+564

4,017

400

What is 842-98=

744

400

56,61,66,71,_____

76

400

What is 5,032?

5,000+0+30+2 or 5,000+30+2

500

What is 9876+9876

19,752

500

What is 921-478=

443

500

67,71,75,79,____

83

500

What is 454,567?

400,000+50,000+4,000+500+60+7