一年级不退位减法、加法，退位减法及进位加法习题一、知识要点。
（1）不退位减法：指两数相减时，被减数的个位数大于减数的个位不需要退位。
（2）不进位加法：指两数相加时，两数的个位数的和小于10时（＜106+3=9，不需要进位。
（3）退位减法：指两数相减时，被减数的个位数小于减数的个位数，要用从被减数十位上往下退位，还要留下退位点“.”。
例：2。
6-7=19，6＜7，6无法减7时，就需要从被减数十位上往下退位，从十位上借出一个“1”，代表是10。
10+6-7=9，这时个位就是9，十位借走一个“1”，十位还剩下一个“1”，所以结果就是19。
同时标好退位点“.”。
（4）进位加法：指两数相加时，两数的个位数的和等于或大于10时（≧10个位写下0，要往十位数进位，左下方标上小“1”，同时还要把这个“1”与十位上的数字相加，即2+1=3，所以结果就是30。
二、相关习题练习。
1、不退位减法（列竖式）19-8= 58-35= 39-18= 98-67=79-68= 78-58= 99-88= 68-67=75-53= 18-17= 49-28= 58-50=2、不进位加法（列竖式）19+0= 58+11= 39+20= 98+1=73+16= 78+21= 44+55= 33+66= 75+14= 2+17= 31+28= 29+50=3、退位减法（列竖式）17-9= 58-29= 31-27= 16-9= 73-37= 78-69= 44-35= 33-14= 75-57= 85-78= 31-2= 22-3=4、进位加法（列竖式）19+11= 58+13= 39+29= 99+1= 73+17= 68+25= 44+56= 18+66= 36+14= 25+55= 32+28= 29+69=。
一、口算79-41 = 88-5 = 46+13 = 96 - 44 = 17・ 12 = 77 - 43 = 10 + 65 = 11+25 =88 + 10 = 69-9 = 12+14 = 65 ・ 30 = 55・ 11 = 66 - 22 = 56+10 = 46-13 =5 + 54 = 40 + 39 = 76 - 52 = 98 ・ 11 = 13 + 66 = 88 - 72 = 43 + 31 = 86-11 =2 + 25 = 20 + 36 = 57 - 22 = 89-2 =28 ・ 11 = 86 - 82 = 56 - 55 = 75 - 65 = 79・61 = 93-21 = 22 + 42 = 20 + 74 = 48 - 45 = 96 - 96 = 55・31 = 11+36 =17+12 = 80 + 20 = 26 + 3 = 64 - 34 = 31+30 = 55・51 = 87 - 77 = 27 + 2 =3 + 23 = 77 - 36 = 20+18 = 63 + 32 = 42 + 55 =4 + 40 = 30+14 = 93 - 52 =4・4 = 20 + 31 = 84 - 74 = 53 + 40 = 35 + 54 = 96-31 = 10 + 33 = 26-10 =99 ・ 89 = 57 - 55 = 69 - 29 = 36-14 =33 + 32 = 99 - 56 = 6 + 71 = 10 + 78 = 18・5 = 34 ・ 11 = 68 - 37 = 0 + 38 =86 - 55 = 56 - 26 = 47・31 = 86-5 =98・ 12 = 8・2 = 22 + 1 = 96 - 62 = 69 ・ 54 = 32 + 26 = 89 - 83 = 68-8 =54 + 21 = 88-81 = 49 - 33 = 85・5 =68 - 47 = 43 + 51 = 58 - 52 = 95・5 =37・31 = 98・ 17 = 31+20 = 93 ・ 70 =二、列竖式计算。
100以内(不进位不退位)口算练习题（1）班级__________ 学号__________ 姓名__________一、口算79 - 41 = 88 - 5 = 46 + 13 = 96 - 44 = 17 - 12 = 77 - 43 = 10 + 65 = 11 + 25 = 88 + 10 = 69 - 9 = 12 + 14 = 65 - 30 = 55 - 11 = 66 - 22 = 56 + 10 = 46 - 13 = 5 + 54 = 40 + 39 = 76 - 52 = 98 - 11 = 13 + 66 = 88 - 72 = 43 + 31 = 86 - 11 = 2 + 25 = 20 + 36 = 57 - 22 = 89 - 2 =28 - 11 = 86 - 82 = 56 - 55 = 75 - 65 = 79 - 61 = 93 - 21 = 22 + 42 = 20 + 74 = 48 - 45 = 96 - 96 = 55 - 31 = 11 + 36 = 17 + 12 = 80 + 20 = 26 + 3 = 64 - 34 = 31 + 30 = 55 - 51 = 87 - 77 = 27 + 2 =3 + 23 = 77 - 36 = 20 + 18 = 63 + 32 = 42 + 55 =4 + 40 = 30 + 14 = 93 - 52 = 4 - 4 = 20 + 31 = 84 - 74 = 53 + 40 = 35 + 54 = 96 - 31 = 10 + 33 = 26 - 10 = 99 - 89 = 57 - 55 = 69 - 29 = 36 - 14 = 33 + 32 = 99 - 56 = 6 + 71 = 10 + 78 = 18 - 5 = 34 - 11 = 68 - 37 = 0 + 38 = 86 - 55 = 56 - 26 = 47 - 31 = 86 - 5 =98 - 12 = 8 - 2 = 22 + 1 = 96 - 62 = 69 - 54 = 32 + 26 = 89 - 83 = 68 - 8 =54 + 21 = 88 - 81 = 49 - 33 = 85 - 5 =68 - 47 = 43 + 51 = 58 - 52 = 95 - 5 =37 - 31 = 98 - 17 = 31 + 20 = 93 - 70 =二、列竖式计算。
100以内(不进位不退位)口算练习题（1）班级__________ 学号__________ 姓名__________一、口算79 - 41 = 88 - 5 = 46 + 13 = 96 - 44 =17 - 12 = 77 - 43 = 10 + 65 = 11 + 25 =88 + 10 = 69 - 9 = 12 + 14 = 65 - 30 =55 - 11 = 66 - 22 = 56 + 10 = 46 - 13 =5 + 54 = 40 + 39 = 76 - 52 = 98 - 11 =13 + 66 = 88 - 72 = 43 + 31 = 86 - 11 =2 + 25 = 20 + 36 = 57 - 22 = 89 - 2 =28 - 11 = 86 - 82 = 56 - 55 = 75 - 65 =79 - 61 = 93 - 21 = 22 + 42 = 20 + 74 =48 - 45 = 96 - 96 = 55 - 31 = 11 + 36 =17 + 12 = 80 + 20 = 26 + 3 = 64 - 34 =31 + 30 = 55 - 51 = 87 - 77 = 27 + 2 =3 + 23 = 77 - 36 = 20 + 18 = 63 + 32 =42 + 55 = 4 + 40 = 30 + 14 = 93 - 52 =4 - 4 = 20 + 31 = 84 - 74 = 53 + 40 =35 + 54 = 96 - 31 = 10 + 33 = 26 - 10 =99 - 89 = 57 - 55 = 69 - 29 = 36 - 14 =33 + 32 = 99 - 56 = 6 + 71 = 10 + 78 =18 - 5 = 34 - 11 = 68 - 37 = 0 + 38 =86 - 55 = 56 - 26 = 47 - 31 = 86 - 5 =98 - 12 = 8 - 2 = 22 + 1 = 96 - 62 =69 - 54 = 32 + 26 = 89 - 83 = 68 - 8 =54 + 21 = 88 - 81 = 49 - 33 = 85 - 5 =68 - 47 = 43 + 51 = 58 - 52 = 95 - 5 =37 - 31 = 98 - 17 = 31 + 20 = 93 - 70 =二、列竖式计算。
