四年级数学整数简便运算120 道(1) 67 +42+33+58 (2) 258 -58-26-74 (3) 125 ×16 (4) 50 ×(2×4)×25 (5) 7 ×8×3×125 (6) 26 ×103 (7) 501 ×12 (8) 25 ×(40+8)(9) 39 ×14+61×14 (10) 163 ×8+37×8 (11) 202 ×13 (12) 77 ×4×5 (13) 27 ×99 (14) 48 ×250 (15) 98 +303 (16) 49 +49×49 (17) 55 ×25+25×45 (18) 123 ×67-23×67 (19) 39 ×101-39 (20) 99 ×64+64 (21) 76 ×23+24×23 (22) 12 +19×12 (23) 21 +254+79+46 (24)25×16×5 (25)52×32+48×32 (26)18×137-18×37 (27)450÷18 (28)420÷35 (29)480÷15 (30)21×99 (31)125×32 (32)12×301 (33)75×3×4 (34)19+99×19 (35)256×9-46×9 (36)13+13×49 (37)(25+125)×8 (38)541×67-67×441 (39)43×201 (40)102×35 (41)304×22 (42)(30+4)×25 (43)38×7+62×7 (44)152×8+148×8 (45)16×401 (46)103×23 (47)(30+2)×15 (48)125×(8+16)(49)68×48+68×2 (50)5×27+63×5 (51)12×(40-5)(52)64×9-14×9 (53)35×98 (54)23×134-34×23 (55)102×45 (56)648+203 (57)98