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+ Patterns
Adding 3 digit numbers
Subtracting with regrouping
Subtracting across zero
Adding and subtracting decimals
100

2, 4, 6, 8, ____, ____

+2

10, 12

100

100+100

200

100

543 minus 467

76

100

607-268=

339

100

3.897+1.127

5.024

200

12, 10, 8, ___, ___

-2

6, 4

200

301+213

514

200


786 minus 496

290

200

705- 147=

558

200

1.944-1.174

0.77

300

1, 3, 9, ____, ____

x3

27, 81

300

345+234


What is 579

300

773 minus 396

377

300

407-169=

238

300

9.423+3.231

12.654

400

400, 200, 100, ___, ___

/ 2

50, 25

400

765+948

1713

400

348 minus 288

60

400

700- 235=

465

400

4.448-2.999

1.983

500

1000, 750, 500, ____, ____

-250

250, 0

500

898+989

1887

500

867 minus 588

279

500

900-489=

411

500

6.290+8.980

15.27