32×23＋52 52+18×12 34×19－18
= = =
= = =
16×28＋34 = = 61+12×230 = = 125×31＋20 = = ×12＋10 = = 43+121×23 = = 148+52×21 = = ×21－61
=
=
45+132×25
=
=
287+35×100
=
=
11 137
1
99+146×90 180×33＋100 8000－100×76
= = =
= = =
138+50×40 = = 56×76＋56 = 160+81×90 = = ×11＋2 199+50×56
=
=
×87＋300
=
2
18 51 =
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