① ② ③
④-(-) ⑤-+- ⑥3.75-+-
1.53-0.5=
7.8+0.9=
7.5-2.5=
12÷0.4=
0.56+6.44=
356÷100=
5.5×0.1=
1-0.4=
32÷1000=
0.12÷0.2=
1.25×5×8=
2.9+4.7+2.1=
5050 5005 5500 5055