0.25×27×445×36+64×451.25×320×250.96×25
9.9×999+9.91.08×1258×25×1.25×16489×101-489
33×1.0328×45+30×135.6×9+560.98×54.
0.25×27×4,
=0.25×4×27,
=1×27,
=27;
45×36+64×45,
=45×(36+64),
=45×100,
=4500;
1.25×320×25,
=1.25×80×4×25,
=(1.25×80)×(4×25),
=100×100,
=10000;
0.96×25,
=0.24×4×25,
=0.24×100,
=24;
9.9×999+9.9,
=9.9×(999+1),
=9.9×1000,
=9900;
1.08×125,
=1×125+0.08×125,
=125+10,
=135;
8×25×1.25×16,
=(8×1.25)×(25×4×4),
=10×400,
=4000;
489×101-489,
=489×(101-1),
=489×100,
=48900;
33×1.03,
=33×1+33×0.03,
=33+0.99,
=33.99;
28×45+30×13,
=28×3×15+15×2×13,
=15×(28×3+13×2),
=15×(84+26),
=15×110,
=15×100+15×10,
=1500+150,
=1650;
5.6×9+56,
=50.4+56,
=106.4;
0.98×54,
=(1-0.2)×54,
=1×54-0.2×54,
=54-10.8,
=43.2.
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