①2.8×1.6+4.2
②2.5×53×0.4
③0.48×0.7+0.52×0.7
④28.6×101-28.6
⑤(8+0.8)×0.125
⑥3.8×0.9+0.38
⑦1.25×25×3.2
⑧6.7+3.3×0.42
⑴10.8 ÷ 45 ⑵96 ÷ (9.6 ÷ 8)
⑶9.75 ÷ 2.5 ÷ 0.4 ⑷4.3× 0.8 + 2.6 ÷13
①12.5×3.2×0.25
②12.6÷(3.4-1.6)
③0.84×55÷0.7
④10-5×2.44×0.2
⑤1.8+1.8÷9-0.85
⑥11.1×63+111×3.7