小数加减法简便运算给孩子找点小数加减法简便运算 越多越好

问题描述:

小数加减法简便运算
给孩子找点小数加减法简便运算 越多越好

四年级小数的加法和减法
(1) 34.85 - 11.73 = (2) 75.80 + 59.35 =
(3) 64.39 + 40.78 = (4) 67.23 - 19.17 =
(5) 50.10 - 48.60 = (6) 91.91 - 75.10 =
(7) 53.73 - 31.75 = (8) 64.48 - 14.42 =
(9) 39.03 - 14.98 = (10) 22.04 + 80.13 =
(11) 28.36 - 24.00 = (12) 61.83 + 69.95 =
(13) 65.36 - 38.06 = (14) 29.37 - 18.02 =

(15) 42.09 - 32.46 = (16) 18.08 + 34.00 =

(17) 47.63 - 31.59 = (18) 17.42 - 10.44 =
(19) 16.24 - 14.18 = (20) 55.89 - 28.75 =

(1) 54.76 - 51.12 = (3) 59.46 + 18.28 = (5) 21.85 + 37.08 = (7) 84.75 + 21.4 = (8)12.3+23.8 = (9)12.9+ 45.6= (10)1.23+6.52= (11)5.32-0.93= (12)4.26+8.21= (13)6.35-5.23= (14)1.23+5.69=(15)1....