比比谁先到对岸.7.5﹣4.3= 2.18+6.72= 7﹣0.99=0.47+6= 4.4+0.39= 6.3+3.6=0.95﹣0.32= 2.4+7.3= 10.7﹣5.7=5.4+5.04= 3.74﹣1.44= 4﹣0.01=
0.92×1.41+0.92×8.59×-× 1.3×11.6-1.6×1.3×11.6+18.4×
13×÷29÷× 15.68+(5.39+4.32) 19.68-(2.97+9.68) 7+(-) 5-(-)
1-- 41.06-19.72-20.28 7-3+ 8+2- 11+7+3 700÷14÷5 18.6÷2.5÷0.4 1.06×2.5×4
102×7.3÷5.1 17+-7
×3÷×3 25×7×4 34÷4÷1.7 1.25÷×0.8