Addition
Subtraction
Arrow Method
Expanded Form
100
400 + 200
600
100
567 - 123
444
100

400 --> 500

+100
100
200 + 50 + 8
258
200
350 + 20
370
200
234 - 126
108
200
400 --> 450
+50
200
8 + 300
308
300
570 + 45
615
300
545 - 162
383
300
330 --> 350
+20
300
40 + 9 + 100
149
400
628 + 72
700
400
722 - 446
276
400
____ - 200 = 500
700
400
Break down 405 in expanded form
400 + 5
500
764 + 236
1,000
500
800 - 338
462
500
600 --> 640 --> 740
+40, +100
500
Break down three hundred twenty two in expanded form
300 + 20 + 2
M
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