65×99
362-(172-128)
25×15+75×25+250
56×[(31+329)÷9]
47.4-16.4+22.6-13.6
4×32+280÷14
89+11=
36+14=
98-28=
47-27=
25×4=
16×5=
99÷11=
39÷13=
86×3=
46×15=
60×11=
90×7=
25×6=
612÷12=
①18.36+9.4+1.64+7.6
②96×101-96
③3600÷25÷4
①8100÷25÷81
②38.46-7.1-2.9
③25×16
④64×[480÷(76+4) ]