Can you calculate

Percents - easy

100

1% out of 100 pounds

 1 pounds

200

10% out of  100 pounds

10 pounds

300

5% out of 100pounds

5 pounds

400

25% out of 100 pounds

25 pounds

500

46% out of 100 pounds

46 pounds

Percents - more difficult

100

1% out of 250 kilograms

2,5 kilograms

200

2% out of 500 kilograms

10 kilograms

300

5% out of 500 kilograms

25 kilograms

400

5 % out of 200 kilograms

10 kilograms

500

15% out of 200 kilograms

30 kilograms

Percents - difficult

100

1% out of 300 crowns

3 crowns

200

1% out of 210 crowns

2,1 crowns

300

10% out of 216 crowns

21,6 crowns

400

1% out of 30 crowns

0,3 crowns

500

5% out of 50 crowns

2,5 crowns

Percents - for experts

100

2% out of 250 kilograms

5 kilograms

200

6% out of 50 kilograms

3 kilograms

300

12 % out of 500 kilograms

60 kilograms

400

25 % out of 200 kilograms

50 kilograms

500

55 % out of 500 kilograms

275 kilograms

Addition

100

100+300=

400

200

100+250=

350

300

100+65=

165

400

25+23=

48

500

56+58=

114