Show:
Addition under 100
Subtraction under 100
Addition over 100
Subtraction over 100
Over 1,000
100

15+10

25

100

20-15

5

100

105+25

130

100

180-40

140

100

520+540

1,060

200

23+14

37

200

45-15

30

200

190+320

510

200

380-220

160

200

403+720

1123

300

55+30

85

300

34-27

7

300

409+224

633

300

487-230

257

300

335+807

1142

400

67+32

99
400

89-22

67

400

654+320

974

400

625-300

325

400

645+433

1078

500

87+12

99

500

98-49

49

500

832+205

1037

500

930-243

687

500

830+670

1500