47 -27 =
58 + 18 =
19 +29 =
16 + 16 =
23 - 13 =
9 10 + 1 10 =
7 12 -5 12 =
255 - 105 =
10-2.5 =
13 +23 =
47 -27 =
16 +56 =
9 10 -3 10 =
29 +49 =
18 + 18 +38 =
1- 29 -49 =
12 1 1 - 1 1 1 =
47 +47 =
1-89 =
12 + 15 + 12 =
76÷ 19=
1-0.00 1=
156÷26=
3.6×0.2=
360÷45=
80÷ 16=
1.3-0.7=
0.49+0. 16=
2.6×0.4=
55÷0.00 1=
55×0.00 1=
2400÷30=
25 - 15 =
34 + 14 =
29 +59 =
12 + 12 =
58 -38 =
56 - 16 =
13-0.56 =
14 - 1.5 =
9 10 -4 10 =
0.79+0.79×99=
1÷5+ 1÷5=
0.89× 10 1-0.89=
1. 1-2.7÷27=
573-(273+ 169)=
12.4× 1 1- 12.4=
5÷0.25=
0.84÷0.4=
0.25× 16=
2.5×40=
700-699.9=
620÷200=
78÷ 16=
900 1-8006=
144÷ 12=