四年级-简便计算-乘法分配律练习题.docx

乘法分配律练习题
325 X 113— 325 X 13
28X18-8X28
类型五：
83+83X99
56+56X99
类型一:
(40+ 8) X 25
125X
(8+80)
125 >81
25 >41
36X (100+50)
24 X
(2+10)
86 X (1000—2)
15X
(40— 8)
类型四：
31 >99
42 >98
二：
36X34+ 36X66
75X23 + 25X23
29 99
85 98
63X43+ 57X63
93X6+93X4
125 79
25 39
类型三
78X02
69X02
99X99+ 99
75 X 101-75
56 101
52 M02
125X81 — 125
91X31-91
(1) 67+ 42+33+58
(2) 258-58-
简便计算120道练习题
26-74 (3) 125X16
(4) 50 X ( 2X 4) X 25
(5) 7X 8X 3X 125
(6) 26X103
(7) 501 X12
(8) 25X (40+8)
(9) 39X 14+61 X 14
(10) 163X 8 + 37X8
(11) 202X 13
(12) 77X4X 5
(15) 98 + 303
(16) 49+49X 49
27X99
48X250
(17) 55X25+25X45 (18) 123X 67— 23X 67
(19) 39X101-39
(20) 99X64+ 64
76X 23+24X 23 (22) 12+19X 12
(23) 21+254+79+46 (24) 25X 16X5
(28) 420+ 35
(25) 52X32+48X32 (26) 18X 137— 18X37 (27) 450+ 18
480+ 15
21 X99
125X32
12X301
(33) 75X3X4
(34) 19+99X 19
(35) 256X9 — 46X9
(36) 13+ 13X49
(37) (25+125) X 8
(41) 304X22
(39) 43X201
(43) 38X 7+ 62X7
(38) 541X67—67X441
(42) (30+4) X 25
(40) 102X 35
(44) 152X 8+ 148X8
(45) 16X401
(46) 103X23
(47) (30 + 2) X 15
(48) 125X (8+16)
(53 )
64X9— 14X 9
(54 ) 23X134 — 34X23
(55 ) 102X45
(56) 648+203
(57 )
98X