skoledu Tristan

+

100

10+40=?????

=50

200

100+55=?????

=155

300

150+38=?????

=188

400

1000+459=?????

=1459

500

1659+8956=?????

=10615

-

100

40-10=?????

=30

200

100-55=?????

=45

300

150-38=?????

=112

400

1000-459=?????

=541

500

9379-5373=?????

=4006

X

100

5X1=?????

=5

200

10X10=?????

=100

300

200X190=?????

=38000

400

1947X1649=?????

=3210603

500

183654X17364936=?????

=3.18914e+12

%

100

5%5=?????

=1

X % - +

100

10-5+2X10%5=?????

=5