赚现金
简算.×3+×5+×10 999×7+111×7 (+++)×2002.
简算①9﹣(3+0.4) ②1.8×+2.2×25% ③×[0.75﹣(﹣)].
.
=
1990×2.8+199×51+1.99×2100.
524﹣(124﹣87)
94×56.87+94×43.48+6×100.35.
计算(能简算的要简算)12.5×8×4×0.25 .
9999×7+1111×37.
(1)26.86×25.66﹣16.86×25.66 (2)52.3×0.68+3.2×5.23(3) (4)99+99×99+99×99×99.
4.7×99+4.7.
20.07×35+750×2.007﹣200.7.
计算下列各题,能简算的要简算. 28× ﹣(+) 85× 236÷+236÷ ×÷ 45÷(1﹣)÷(1﹣)
简便计算9999×2222+3333×3334 ÷+×+÷3.
6.62×45+33.8×4.5.
试题篮