100-400
Addition
Subtraction
What number is missing
Years
100

What number is right in the middle of 100-200

150

100

148+35

183

100

232-4

228

100

 +4=7

3

100

1800

Eighteen hundred

200

What number is in the middle 100-160

130

200

27 plus 58

85

200

613-60

553

200

 -2=0

2

200

1982

Nineteen eighty two

300

What is 120+130

250

300

128+340

468

300

958-120

838

300

 +7=20

13

300

2024

Two thousand twenty four

400

what is 134+234

 368

400

2589+356

2945

400

7700-290

7410

400

 -9=73

82

400

2019

Two thousand nineteen

500

What is 100 rounded to the nearest 10

110

500

12450+48

12498

500

23478-1320

22158

500

 -14=7715

7729

500

1805

Eighteen-oh-five / Eighteen hundred and five

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