(2.1+0.54)÷0.2
7.4×0.56+0.44×7.4
9.4×10.1
100÷(1.25÷1.5)
7.28+3.2÷2.5 6.1×3.6+3.6×3.9
9.8×25 1.25×0.7×0.8
①2.8+5 +7.2+3
②9 ×4.25+4 ÷6
③2.5×3.2×1.25
④75.3×99+75.3
⑤23.46-6.57-3.43
⑥ ×8.3-0.3×62.5%
①12÷[(10.75-9.5)×0.4]
②16-16×
③8.36-3.65+1.64-2.35
④14÷ +2×
⑤( + )×8+
⑥12.7×7.5-26× -75%