口算(1)6+6= (2)9+4= (3)13-8= (4)5+7= (5)5+6=(6)11-6= (7)12-9= (8)8+6= (9)11-5= (10)4+8=(11)15-8= (12)8+5= (13)7+8= (14)13-9= (15)8+8=(16)12-3= (17)11-6= (18)12-4= (19)12-5= (20)11-2=
用简便方法计算下面各题(18分) (1)13.6-1.8-3.2(2)13.7+1.98+0.02+5.3 (3)5.1+0.9-5.1+0.9 (4)36×99 (5)10.75+0.4+0.25(6)38.14-5.46-4.54
笔算下面各题(12分) (1)1.608+2.84=(2)6.07-3.869= (3)1.5-0.306=(4)76.8+26.82= (5)2.983+0.52+1.25= (6)13.79-9.653-2.48=
口算下面各题(10分) 2.5+3.2=9.8-4.8=1.29-0.18= 2.26+0.9= 8-0.82=0.75+0.25= 1.4+0.5=10.8-8.5= 6.4+1.07= 0.55+5.5= 1.05-0.09= 0.6+6.45= 4.13-1.8= 0.46+0.54= 1.07-0.47= 1.28+0.22= 2.4-1.9= 0.06+1.5= 2.5-0.9=4.2+0.53=
把算式和得数连上线
计 算 (1)11-9=(2)18-9=(3)13-9= (4)15-9=(5)9-3=(6)14-9= (7)12-9= (8)16-9=(9)17-9=(10)19-9=