三道简便计算0.65×13+89×65% 36÷11+52 (0.36+0.36+0.36+0.36)×2.5

问题描述:

三道简便计算
0.65×13+89×65% 36÷11+52 (0.36+0.36+0.36+0.36)×2.5

0.65×13+89×65% = (13+89)× 0.65= 102 × 0.65= 66.336÷11+52 = 3.27 + 52= 55.27(这题不可以简便运算)(0.36+0.36+0.36+0.36)×2.5= 0.36 × 4×2.5= 0.36× 10= 3.6 秋风燕...