Show:
addition
long addition
subtraction
long subtraction
multiplication
100

21+37

58

100

273+531=

804

100

23-18=

5

100

223-156=

67

100

Using the Box Method What is 19x15=

285

200

14+14=

28

200

359+426=

785

200

33-21

8

200

333-256=

77

200

Using the Box method what is 21x40=

800

300

17+41=

58

300

112+754=

866

300

48-25=

23

300

632-321=

311

300

Use the Box Method 23x25=

575

400

62+54=

116

400

550+321

871

400

82-57=

25

400

1258-389=

869

400

Using the Box Method 47x32=

1,504

500

73+25=

98

500

937+452=

1,389

500

93-47=

46

500

4736-1257=

3,479

500

Using the Box Method 123x23=

2,829