四年级上册数学混合运算?在四年级上册的数学学习中,加减乘除混合运算题目是常见的练习内容。如1976+7093-35×131这类题目要求学生熟练掌握运算顺序规则。对于上述每个题目,遵循数学运算规则至关重要。例如,先进行乘除法,再进行加减法;若有括号,则先计算括号内的数值。具体到题目1976+7093-35×131,那么,四年级上册数学混合运算?一起来了解一下吧。
①先算乘除、后算加减
②有括号的要先算括号里面的。
③有简便方法的要用简便方法计算;
例如:
①7×25/26
=7x(1-1/26)
=7x1-7x1/26
=7-7/26
=6又19/26
②18又9/10×1/9
=(18+9/10)x1/9
=18x1/9+9/10x1/9
=2+1/10
=2又1/10
③21又1/19×1/20
=(20+20/19)x1/20
=20x1/20+20/19x1/20
=1+1/19
=1又1/19
④(25+2又5/21)×21/26
=(26+26/21)x21/26
=26x21/26+26/21x21/26
=21+1
=22
⑤6/11×3/7+4/11×6/7
=6/11x3/7+6/11x4/7
=6/11x(3/7+4/7)
=6/11x1
=6/11
9 ÷ 3 ÷ 3 =
83 + 6 + 7 =
77 + 16 - 45 =
70 - (23 - 18) =
6 ÷ 3 ÷ 1 =
15 + 5 × 6 =
179 + 639 =
619 - 75 =
479 - 66 =
78 + 543 =
38 - 35 =
72 + 442 =
41 + 16 + 11 =
12 + (23 - 12) =
84 - 61 + 45 =
98 - 47 + 7 =
17 + (41 + 1) =
38 + 21 - 35 =
72 - 4 - 45 =
32 ÷ (6 - 2) =
15 ÷ 5 ÷ 1 =
20 ÷ 5 + 10 =
6 × 8 × 1 =
7 × 5 × 3 =
25 × 8 × 2 =
196 ÷ 28 =
72 ÷ 24 =
16 × 5 × 125 =
108 ÷ 18 =
2 × 3 × 30 =
5 × (2 × 5) =
75 + 19 - 30 =
41 + 19 - 85 =
7 × (11 - 11) =
7 × 5 - 28 =
6 ÷ 2 - 0 =
748 - 138 =
275 - 83 =
322 + 380 =
300 - 71 =
486 - 404 =
44 + 111 =
86 - 62 - 22 =
25 + (26 - 13) =
41 + 16 + 31 =
36 + 52 + 11 =
98 - (48 - 47) =
21 + 15 ÷ 5 =
9 ÷ (5 - 2) =
10 ÷ (8 - 6) =
3 × 2 + 56 =
19 - 2 × 9 =
54 ÷ 18 =
125 × 6 × 32 =
98 ÷ 49 =
441 ÷ 63 =
240 ÷ 30 =
10 × 8 × 5 =
77 - 17 - 33 =
43 - 0 ÷ 4 =
29 × (36 ÷ 6) =
5 × 5 × 8 =
3 ÷ 3 + 27 =
36 × 6 ÷ 6 =
48 + 688 =
173 + 331 =
56 + 147 =
115 + 707 =
40 + 334 =
141 + 395 =
12 + 62 - 52 =
53 + (45 - 24) =
41 + 16 + 31 =
36 + 52 + 11 =
98 - (52 - 32) =
51 + 36 + 11 =
72 - 4 - 45 =
32 ÷ (6 - 2) =
15 ÷ 5 ÷ 1 =
20 ÷ 5 + 10 =
6 × 8 × 1 =
7 × 5 × 3 =
125 × 7 × 8 =
2 × 5 × 45 =
96 ÷ 32 =
441 ÷ 49 =
105 ÷ 15 =
128 ÷ 32 =
5 × 3 × 34 =
441 ÷ 4965 + 19 - 23 =
30 + 48 ÷ 3 =
84 - (36 - 34) =
18 × 7 ÷ 3 =
14 - 2 × 6 =
12 × 8 ÷ 4 =
46 + 104 =
288 - 251 =
46 + 252 =
641 - 610 =
89 - 59 =
298 + 560 =
28 + 21 + 20 =
52 + 33 + 11 =
42 + (52 - 31) =
81 - 61 + 25 =
88 - 14 + 11 =
81 - (47 - 21) =
40 + (3 × 7) =
4 ÷ 2 + 16 =
18 ÷ 9 + 36 =
4 × 3 × 8 =
19 × (36 ÷ 6) =
67 + 13 + 1 =
5 × 3 × 44 =
320 ÷ 40 =
150 ÷ 30 =
225 ÷ 25 =
210 ÷ 30 =
72 ÷ 12 =
6 × 6 - 32 =
22 + 40 - 28 =
18 + 7 × 2 =
28 + (32 ÷ 4) =
86 + 5 - 31 =
19 + 37 - 32 =
416 - 397 =
76 + 877 =
245 + 516 =
81 - 50 =
95 - 62 =
591 - 51 =
23 + 23 - 24 =
84 - (33 - 12) =
33 + 12 + 11 =
94 - 32 + 2 =
87 - (12 - 2) =
56 + 13 - 66 =
9 ÷ 3 ÷ 3 =
83 + 6 + 7 =
77 + 16 - 45 =
70 - (23 - 18) =
6 ÷ 3 ÷ 1 =
15 + 5 × 6 =
四则混合运算585-118-182
解题思路:四则运算规则(按顺序计算,先算乘除后算加减,有括号先算括号,有乘方先算乘方)即脱式运算(递等式计算)需在该原则前提下进行
解题过程:
585-118-182
=467-182
=285
扩展资料(竖式计算-计算结果):将减数与被减数个位对齐,再分别与对应计数单位上的数相减,不够减的需向高位借1,依次计算可以得出结果,减数小于被减数将两数调换相减最后结果加个负号;小数部分相减可参照整数相减步骤;
解题过程:
步骤一:7-2=5
步骤二:16-8=8 向高位借1
步骤三:4-1-1=2
根据以上计算步骤组合计算结果为285
存疑请追问,满意请采纳
1、(135 + 415) ÷ 5 + 16 = 550 ÷ 5 + 16 = 110 + 16 = 126
2、1200 - 20 × 18 = 1200 - 360 = 840
3、720 - 720 ÷ 15 = 720 - 48 = 672
4、(360 - 144) ÷ 24 × 3 = 116 ÷ 24 × 3 = 9 × 3 = 27
5、2400 ÷ 80 - 14 × 2 = 30 - 14 × 2 = 30 - 28 = 2
扩展资料:四则运算的运算顺序
1、如果只有加和减或者只有乘和除,从左往右计算。
2、如果一级运算和二级运算同时有,先算二级运算。
3、如果一级、二级、三级运算(即乘方、开方和对数运算)同时有,先算三级运算再算其他两级。
4、如果有括号,要先算括号里的数(不管它是什么级的,都要先算)。
5、在括号里面,也要先算三级,然后到二级、一级。
1、1976+7093-35×131
2、84+9050-5096÷104
3、1882+87×35-796
4、(258+893)×1677÷129
5、6254+585÷(1901-1856)
6、1300+5145÷343×202
7、(1061-911)+112×135
8、6835-819+7975÷725
9、9369-93×62+460
10、4047-142×1313÷101
11、(6340-5122)÷58+647
12、(4456-964)÷194×398
13、70×160+636-123
14、587×77+5776÷304
15、251×113-161×47
加减乘除混合运算法则:
1、同级运算从左往右依次计算。
2、异级运算先算二级运算,再算一级运算(× ÷为二级,+ -为一级) 有括号的先括号里面的,再算括号外面的。
3、在没有括号的算式里,有乘、除法和加、减法,要先算乘、除法,后算加、减法。
以上就是四年级上册数学混合运算的全部内容,587×77+5776÷304 15、251×113-161×47 加减乘除混合运算法则:1、同级运算从左往右依次计算。2、异级运算先算二级运算,再算一级运算(× ÷为二级,+ -为一级) 有括号的先括号里面的,再算括号外面的。3、在没有括号的算式里,有乘、除法和加、减法,要先算乘、除法,后算加、减法。内容来源于互联网,信息真伪需自行辨别。如有侵权请联系删除。