1.4.1有理数的乘法计算基础训练2023-2024学年人教版七年级数学上册

有理数的乘法计算基础训练 班级 姓名 学号 (1)(←3)×9= (21)3x(-)= (2)8×(-1)= (22)(-0.5)×0.7= (3)(←)x(-2)= (23)(-999)×0= (4)6×(-9)= (24)1.2×(-8)= (5)(-4)×6= (25)()×(-2岁）= (6)(-6)×(4)= (26)14×(-0.5)= (7)(-6)×0= (27)(-35)×(-1)= 图36学 (28)(-15)×24= 9)× (29)-4.8×(←45)= (10)(-8)×(-7)= (30)(-1×(-0.6)= (11)12×(-5)= (31)(-5)×(-6)= (12)2.9×(-0.4)= (32)(-×名 (13)-30.5×0.2= (33)(2)×3= (14)100×(←-0.001)= (34)(-7)×(4)= (15)(←4.8)×(-1.25)= (35)(-0.5)×(-4)= (16)4×(-爵)归 (36)(-4)×2.5= (17)(-2)×(0 (37)2.5×(-1)= (18)-4×25= (38)(-3×(-= (19)(←0.3)×(-19= (39)(10)x16= (20)(-2020)×(-1)= (40)(←3)×8=