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两位是减一位数退位减法练习题
两位是减一位数退位减法练习题
26-9= 32-7= 24-6= 25-7= 35-6=
42-8= 26-8= 32-8= 32-9= 35-7=
33-5= 33-9= 34-5= 34-6= 34-9=
35-9= 36-7= 36-9= 37-9= 38-9=
20-4= 40-4= 21-8= 20-8= 30-7=
40-2= 31-4= 31-7= 40-1= 22-6=
40-3= 40-5= 40-9= 41-2= 33-8=
41-3= 41-5= 41-7= 23-8= 41-9=
42-3= 22-9= 23-5= 25-8= 27-9=
42-4= 42-5= 42-7= 42-9= 43-4=
43-5= 43-7= 61-8= 53-5= 62-5=
53-8= 43-9= 44-5= 44-7= 45-6=
45-8= 53-7= 61-4= 46-7= 46-9=
47-8= 48-9= 54-8= 60-6= 63-6=
63-5= 50-1= 50-3= 50-5= 50-7=
55-8= 62-8= 50-9= 51-2= 51-5=
64-8= 51-7= 51-9= 52-3= 52-7=
43-6= 44-8= 52-8= 52-9= 53-4=
53-6= 45-9= 53-9= 54-5= 46-8=
61-7= 60-8= 54-6= 54-7= 50-2=
61-3= 54-9= 55-6= 50-6= 61-6=
17 - 8 = 27 - 8 = 37 - 8 = 64 - 6 = 54 - 6 = 44 - 6 = 34 - 6 = 24 - 6 = 14 - 6 = 25 - 6 = 14 - 9 = 33 - 7 = 46 - 9 = 22 - 4 = 23 - 8 = 12 - 6 = 52 - 9 = 42 - 8 = 32 - 4 = 75 - 7 = 62 - 5 = 46 - 8 = 28 - 9 = 16 - 8 = 21 - 4 = 18 - 9 = 35 - 6 = 31 - 4 = 16 - 7 = 33 - 5 = 32 - 5 = 42 - 5 = 57 - 9 = 61 - 4 = 73 - 5 = 74 - 6 = 54 - 7 = 23 - 4 = 36 - 8 = 14 - 5 = 16 - 8 = 23 - 6 = 26 - 8 = 14 - 7 = 82 - 6 = 84 - 7 = 91 - 4 = 67 - 9 = 55 - 6 = 47 - 8 = 11 - 4 = 21 - 4 = 31 - 4 = 41 - 4 = 51 - 4 = 14 - 7 = 24 - 7 = 34 - 7 = 48—3= 84—3=
20-5= 50-7= 40-3= 60-2=
30-6= 20-8= 50-4= 70-4=
20-5= 70-8= 40-7= 80-4=
90-1= 60-7= 80-5= 70-3=
20-3= 70-5= 40-6= 80-8=
60-4= 30-5= 50-6= 60-2=
30-4= 40-5= 50-7= 60-3=
37-8= 22-4= 23-9= 42-6=
41-7= 63-8= 53-6= 54-9=
81-2= 26-8= 85-8= 38-9=
73-7= 38-9= 45-9= 72-3=
24-6= 63-8= 72-5= 34-8=
71-7= 65-8= 48-9= 24-7=
53-9= 68-3= 46-9= 21-7=
把正确的得数圈出来。
45—8(37,47) 92—9(2 ,83)84—7(14,77) 37—6(21,31)
提问:在计算两位数减一位数的减法时,你有什么要提醒大家的?
56—5 61—8 63—10 54—9 57—7 72—4
2.填一填。
在○里填“>”、“<”或“=”。
61—4○65 46○52—6 72—2○70 31○35—9
23+8○23—8 84—9○84—5
(1)直接写得数。
74-6= 80-7= 54-7= 27-8=
49-5= 25+6= 98-9= 62-20=
(2)在得数比50小的算式后面画“√”。
54-9□ 42+8 □ 74-40□
59-4□ 42+6 □ 36 +30 □
(3)解决问题。
亮亮带30元去买一个书包 28元,应找回多少元?
六.智力冲浪,拓展练习。
○和△各表示什么数字?
○△-○=85
○=( ) △=( )
34—8= 43—8= 83—4= 38—4=
18+6= 27+7= 28+2= 36+6= 27+8
23-9= 94-5= 77-8= 60-4= 80-5
48+5= 49+6= 18+8= 48+7= 18+7 50-6
60-7= 90-8= 50-9= 91-2=
7+56= 9+35= 4+36= 8+49=
6+68= 42-7= 32-8= 73-8=
83-9= 34-5= 24+6= 15+7=
55+8= 67+5= 48+6=
93-9= 44-5= 84-6= 46-7=
85-9= 87+3= 76+4= 77+9=
68+9= 69+1= 25-6= 15-7=
65-8= 75-9= 56-7= 58+2= 68+3
39+4= 47+5= 75+= 72-7= 42-8=80-3= 91-5= 94-7= 44+7= 32+8
12+9= 28+4= 86+5= 84-8= 35-6
95-7= 75-8= 34+6= 43+7= 53+896-8= 66-9= 57-8= 87-9= 48-9= 69+5
73+7= 35+7= 89+2=
41-6= 61-7= 22-9= 91-8= 83-4
76+5= 57+4= 19+5= 37+6= 45+7
61-8= 24-6= 54-7= 84-8= 34-9
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