16.3-7.6-2.4 8.8+4.3+5.2
9-(3.02+1.25) 2.13-1.59+0.87
503+497 =
62+38×0=
52+25-52+25=
0.6÷100=
1 . 36×1000 =
28÷4×7=
174-48-52=
5×4÷5×4=
42 - 42÷42 =
9×9+19
=9×9+9+10
=9×(9+1)+10
=9×10+10
=(9+1)×10
=10×10
99×99+199
(元)