Show:
Subtraction (NO Regrouping)
Subtraction (Regrouping)

Addition
What's Missing?
Adding 4 Digits
100

75-10

65

100

34-29

5

100

15+25

40

100

20 + ____= 120

100

100
9+7+8+6

30

200

54-23

31

200

62-45

17

200

45+37

82

200

155-____=100

55

200

17+14+24+37

92

300

189-178

11

300

123-45

78

300

76+59

135

300

59+____=176

117

300

10+20+30+40

100

400

753-312

441

400

432-145

287

400

156+97

253

400

275+____=950

675

400
25+35+45+55

160

500
2,985-1,645

1,340

500

1,368-879

489

500

276+382

658

500

673-___=253

420

500

67+76+23+32

198