目录50道脱式计算二年级上册 二年级脱式计算题大全800道 二年级上册200道脱式计算题 二年级100以内脱式计算500道 二年级数学脱式题上册100道
(1)36+48-25 (2)(34-27)×5(3)96-6×8(4)29+42÷7(5)43+26-17 (6)48÷8×5(7)37-27÷9 (8)(26-19)×6(9)64÷(24-16)(10)36+48-25(11)96-6×8 (12)(34-27)×6(13)29+42÷7 (14)5×(100-99)(15)345-300÷9(16)63÷(34-25)(17)(83-83)÷9 (18)43-42÷6(19)誉稿36÷9×8 (20)48÷(16÷2)(21)736+3287+1797 (22)9010-3875-2358(23)357+98-398(24)5×(4007-3998)(慎毁25)(345-396)÷7(26)4570-(2390+47)2)竖式计算。 (1)4×5(2)54÷9(3)42-28(4)45÷6(5)50÷8 (6)35+46(7)3×6(8)35÷7(9)54÷9 (10)7×8(11)5778-2779(12)庆孝孝5778+2779(13)4581+3719(14)6000-5762(15)1436-754(16)786+324(17)6020-5647(18)3375-1868(19)7419-6859(20)6753-3869(21)1923+1894(22)4256+3668(23)4580-677+1423(24)8040-2140-264(25)4250+2764(26)8010-5057(27)9001-7543 (28)4607+1493
脱式计算,即递等式计算,把计算过程完整写出来的运算,也就是脱离竖式的计算.在计算混合运滚悔算时,通常是一步计算一个算式(逐大哗正步计算,等号不能写在原式上),要写出每一步的过程.一般来说,等号要往前,不与第一行对齐.也就是离开原式计算.举例250÷50+12×4=5+48=53如何脱式计算?
如何脱式计算?主要掌握的是记住要先算乘、除法,后算加、减法.在乘除法连继计算时中,要按从左往右的顺序依次计算.遇到括号,要首先计算括号内部.在脱式过程中要按运算顺序划出运算顺序线,还要做到“三核对”,一要核对从书上把题抄到作业本上数字、符号是否抄对.二要核对从横式抄到草稿竖式的数字、符号是否抄对.三要核对把草稿竖式上的得数,抄到横式上是否抄对,小数点是否点对地方,有无遗漏.
① 4054-507+614② 25÷5+168③(416-360)÷7④ 580-8×9
九、脱式计算 82-22+8422-(28-22)88-(25-24)88-86+22 68-28+26
= == === == ==
(100-63)×838-(49-21)42÷(1+6) 6×(5+4) 88+88-86 == == =
== = = =
——————————————————————————————————————————————————
十、脱式计算
77-46+32 63-38+26 79+19-36 76+72÷8 88-26+28 = == =芦裤== == ==
20-(22+28) 22+22+84 82-(28-22)88+(88-28) 88-28+86== == = == == =
十一、脱式计算6+8×4 (6+2)×7(40-28)÷6 (42+30)×2 77-76+32
= == === == ==
5×3+99×8+308×7+30 6×8+6 61-38+26== == = == = = =
——————————————————————————————————————————————————
十二、脱式计算
(66-50)÷2 36÷(2+4)38-36+2784-27+16 79+19-16 = == === == ==
4+27-1693+23+94 69-(39-23) 99+(23-24) 18-36+27 == == = == == =
十三、脱式计算
73-23-4 87-27+1693-(39-23) 71-(23-24) 99-(23-24)= == === == ==
30+(23-29)73-23-493-(39-23) 71-(23-24)99-96+32== == = == = = =
——————————————————————————————————————————————————
十四、脱式计算
(66-50)÷2 36÷(2+4)38-36+2784-27+16 79+19-16 = == === == ==
4+27-1693+23+94 69-(39-23)99+(23-24) 18-36+27 == == = == == =
十五、脱式计算 80-(19+42)( 21+15)÷9 64+8×281÷9×6 (39-30)×6
= == === == ==
(79-23)÷8 (4+5)×6 81÷9×654+9×28×7-55
== == =
== = = =
——————————————————————————————————————————————————
十六、脱式计算
90-2×9 56-1×6 (85-31)+5964÷(24-16)48-24÷3= == === == ==
12÷4+75 7×5+18 6×6+27 23+6×8 (33+49)-68== == =
== = = =
十七、脱式计算 180-(19+142)( 30+15)÷9 64+8×681÷9×7(34-30)×6
= == === == ==
(79-7)÷8 (4+5)×6 81÷9×767+7×28×8-55
== == =
== = = =
——————————————————————————————————————————————————
十八、脱式计算
90-5×9 56-4×6 46+4×4 31-3×2 4×7+46 = == === == ==
53-1×9 68+2×8 2×9+636×8-296×3+667== == =
== = = =
十九、脱式计算 80-(19+42)( 21+15)÷9 64+8×281÷9×6 (39-30)×6
= == === == ==
(79-23)÷8 (4+5)×6 81÷9×654+9×28×7-55
== == =
== = = =
二十、脱式计算
90-9×9 56-6×6 (85-31)÷964÷(24-16)48-24÷3= == === == ==
4+27-1693+23+94 69-(39-23) 99+(23-24) 18-36+27
希望对你有用O(∩_∩)O谢谢
1、(125+8)x8
=133x8
=1064
2、(250÷50)+(12×4)
=5+48
=53
在脱式过程中要按运算顺序划出运算顺序线,还要做到“三核对”,
一要核对从书改悉上把题抄到作业本上数字、符号是否抄对;
二要核对从横式抄到草稿竖式的数字、符号是否抄对;
三要核对把草稿竖式上的得数,抄到横式上是否抄对,小数点是否点对地方,有无遗漏。
扩展资料
在四则运算中,加法和减法叫做第一级运算,乘法和除法叫做第二级运算。含有两种或两种以上的运算的算式,通常称为混合运算。加、减、乘、除的混合运算也叫做四则混合运算。在四则混合运算中,规定的计算先后次序,称为运算顺序。数学上规定的四则运算顺序如下:
(1)同级运算在一个算式中,如果只含有同级运算,应当按照从左到右岁慧的次序进行运算。这就是说,只含有加减法,或者只含有乘除法的混合运算,它们的运算顺序是从左到右依次计算。
(2)一至二级运核雀乎算
在一个算式中,如果既含有第一级运算又含有第二级运算,那么,应先算第二级运算,后算第一级运算。即"先算乘法和除法,后算加法和减法",简称"先乘除,后加减"。
如下:
(1)36+48-25
(首扰2)(34-27)×5
(3)96-6×8
(4)29+42÷7
(5)43+26-17
(6)48÷8×5
(7)37-27÷9
(8)(26-19)×6
(9)64÷(24-16)
(10)36+48-25]
简便计算方法:
1、在同级运算兆租中,可以任意交换数字的者猜旦位置,但要连着前面的符号一起交换。(加法或乘法交换律)
2 、在同级运算中,加号或乘号后面可以直接添括号,去括号。减号、除号后面添括号,去括号,括号里面的要变号。(加法或乘法结合律)
3、凑一法,凑十法,凑百法,凑千法:“前面凑九,末尾凑十”。
必记:25找4凑100,125找8凑1000。 (凑整思想)
最佳答案77-46+32
65-38+26
79+19-56
56+74-26
=
=
=
=
=
=
=
=
58-36+27
84-27+16=
4+27-16
=
=
=
=
=
=
93+23+94
69-(39-23)
99+(25-24)
=
=
=
=
=
=
77-76+32
61-38+26
79+19-16
16+77-26
=
=
=
=
=
=
=
=
18-36+27
87-27+16
30+(23-29)
=
=
=
=
=
=
73-23-4
93-(39-23)
71-(25-24)
=
=
=
=
=
=
99-46+32
65-39+26
99+99-56
56+94-26
=
=
=
=
=
=
=
=
59-36+29
94-29+96
30-(23-29)
=
=
=
=
=
=
93-23+94
33-(39-23)
99-(25-24)
=
=
=
=
=
=
99-96+32
69-39+26
99+99-96
96+99-26
=
=
=
=
=
=
=
=
99-36+29
99-29+96
30-(23+29)
=
=
=
=
=
=
23+23+94
93-(39-23)
99-(99-29)
=
=
=
=
=
=
55-46+22
65-28+26
58+18-56
56+54-26
=
=
=
=
=
=
=
=
58-26+25
84-25+16=
4+25-16
=
=
=
=
=
=
82+22+84
68-(28-22)
88+(念知25-24)
=
=
=
=
=
=
55-56+22
61-28+26
58+18-16
16+55-26
=
=
=
=
=
=
=
=
18-26+25
85-25+16
20+(22-28)
=
=
=
=
=
=
52-22-4
82-(28-22)
51-(25-24)
=
=
=
=
=
=
88-46+22
65-28+26
88+88-56
56+84-26
=
=
=
=
=
=
=
=
58-26+28
84-28+86
20-(22-28)
=
=
=
=
=
=
82-22+84
22-(28-22)
88-(25-24)
=
=
=
=
=
=
88-86+22
68-28+26
88+88-86
86+88-26
=
=
=
=
=
=
=
=
88-26+28
88-28+86
20-(22+28)
=
=
=
=
=
=
22+22+84
82-(28-22)
88+(仔指消88-28)
=
=
=
=
=
=
77-46+32
63-38+26
79+19-36
36+74-26
=
=
=
=
=
=
=
=
38-36+27
84-27+16=
4+27-16
=
=
=
=
=
=
93+23+94
69-(39-23)
99+(逗薯23-24)
=
=
=
=
=
=
77-76+32
61-38+26
79+19-16
16+77-26
=
=
=
=
=
=
=
=
18-36+27
87-27+16
30+(23-29)
=
=
=
=
=
=
73-23-4
93-(39-23)
71-(23-24)
=
=
=
=
=
=
99-46+32
63-39+26
99+99-36
36+94-26
=
=
=
=
=
=
=
=
39-36+29
94-29+96
30-(23-29)
=
=
=
=
=
=
93-23+94
33-(39-23)
99-(23-24)
=
=
=
=
=
=
99-96+32
69-39+26
99+99-96
96+99-26
=
=
=
=
=
=
=
=
99-36+29
99-29+96
30-(23+29)
=
=
=
=
=
=
23+23+94
93-(39-23)
99-(99-29)
=
=
=
=
=
=
33-46+22
63-28+26
38+18-36
36+34-26
=
=
=
=
=
=
=
=
38-26+23
84-23+16=
4+23-16
=
=
=
=
=
=
82+22+84
68-(28-22)
88+(23-24)
=
=
=
=
=
=
33-36+22
61-28+26
38+18-16