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三年级数学上册【混合运算】小纸条
第1天 同级运算(1)
姓名 班级 正确率
一 、 直接写出得数。
35 + 27 =
68 - 39 =
46 + 38 =
80 - 25 =
52 + 36 =
73 - 28 =
29 + 65 =
90 - 47 =
36 + 57 =
71 - 35 =
43 + 39 =
82 - 56 =
28 + 64 =
91 - 53 =
55 + 37 =
70 - 26 =
33 + 59 =
85 - 48 =
42 + 49 =
63 - 37 =
二 、列竖式计算。
345 + 267 =
683 - 259 =
456 + 378 =
805 - 436 =
三 、脱式计算。
35 + 27 + 18
80 - 25 - 36
46 + 38 - 29
92 - 47 + 35
三年级数学上册【混合运算】小纸条
第2天 同级运算(2)
姓名 班级 正确率
一 、 口算题。
37 + 46 =
83 - 38 =
54 + 29 =
70 - 36 =
65 + 28 =
92 - 57 =
43 + 49 =
81 - 45 =
39 + 54 =
76 - 38 =
52 + 39 =
90 - 53 =
47 + 36 =
85 - 49 =
38 + 55 =
73 - 36 =
56 + 27 =
88 - 43 =
42 + 59 =
91 - 56 =
二 、列竖式计算。
568 + 275 =
904 - 367 =
386 + 457 =
753 - 289 =
三 、脱式计算。
28 + 64 + 19
91 - 53 - 27
55 + 37 - 46
85 - 48 + 29
三年级数学上册【混合运算】小纸条
第3天 两级运算(1)
姓名 班级 正确率
一 、 口算题。
6 × 7 =
35 ÷ 7 =
8 × 4 =
42 ÷ 6 =
9 × 5 =
45 ÷ 9 =
7 × 6 =
56 ÷ 8 =
8 × 6 =
36 ÷ 4 =
5 × 7 =
49 ÷ 7 =
9 × 6 =
63 ÷ 9 =
6 × 8 =
48 ÷ 6 =
7 × 8 =
54 ÷ 9 =
9 × 4 =
32 ÷ 4 =
二 、列竖式计算。
26 × 3 =
85 ÷ 5 =
37 × 2 =
96 ÷ 3 =
三 、脱式计算。
25 + 3 × 8
40 - 6 × 5
7 × 4 + 29
60 - 42 ÷ 7
三年级数学上册【混合运算】小纸条
第4天 两级运算(2)
姓名 班级 正确率
一 、 口算题。
6 × 7 =
28 ÷ 4 =
9 × 3 =
54 ÷ 6 =
7 × 8 =
36 ÷ 4 =
5 × 9 =
63 ÷ 7 =
8 × 6 =
40 ÷ 5 =
7 × 5 =
56 ÷ 8 =
4 × 9 =
32 ÷ 8 =
6 × 8 =
45 ÷ 9 =
9 × 7 =
64 ÷ 8 =
5 × 6 =
42 ÷ 7 =
二 、列竖式计算。
48 × 2 =
96 ÷ 4 =
57 × 3 =
84 ÷ 6 =
三 、脱式计算。
32 + 5 × 7
60 - 4 × 8
7 × 8 - 29
45 + 63 ÷ 9
三年级数学上册【混合运算】小纸条
第5天 含小括号(1)
姓名 班级 正确率
一 、 口算题。
(3 + 5) × 2 =
24 ÷ (4 + 2) =
(10 - 6) × 5 =
36 ÷ (9 - 5) =
7 × (2 + 5) =
49 ÷ (15 - 8) =
(6 + 3) × 8 =
64 ÷ (4 × 2) =
5 × (12 - 7) =
48 ÷ (12 ÷ 2) =
(9 + 7) ÷ 4 =
6 × (11 - 5) =
(20 - 8) ÷ 3 =
8 × (4 + 3) =
(35 + 14) ÷ 7 =
9 × (15 - 6) =
(42 - 14) ÷ 7 =
5 × (24 ÷ 3) =
(8 + 16) ÷ 6 =
7 × (36 ÷ 6) =
二 、列竖式计算。
(256 + 178) -34=
805 - (367 + 254) =
(456 - 278) + 369 =
900 - (456 + 278) =
三 、脱式计算。
(25 + 15) × 8
90 ÷ (15 - 6)
7 × (24 + 18)
64 - (35 - 17)
三年级数学上册【混合运算】小纸条
第6天 含小括号(2)
姓名 班级 正确率
一 、 口算题。
(4 + 5) × 3 =
36 ÷ (3 + 3) =
(15 - 7) × 4 =
42 ÷ (13 - 6) =
6 × (3 + 6) =
56 ÷ (12 - 5) =
(8 + 4) × 6 =
72 ÷ (3 × 3) =
8 × (14 - 9) =
54 ÷ (18 ÷ 3) =
(12 + 18) ÷ 5 =
7 × (13 - 6) =
(25 - 7) ÷ 3 =
9 × (5 + 4) =
(42 + 21) ÷ 7 =
8 × (16 - 7) =
(49 - 14) ÷ 7 =
6 × (32 ÷ 4) =
(15 + 21) ÷ 6 =
9 × (42 ÷ 7) =
二 、列竖式计算。
(368 + 257) =
900 - (436 + 287) =
(567 - 389) + 456 =
1000 - (567 + 289) =
三 、脱式计算。
(35 + 25) × 7
120 ÷ (18 - 12)
8 × (36 + 24)
75 - (46 - 18)
三年级数学上册【混合运算】小纸条
第7天 综合练习
姓名 班级 正确率
一 、 口算题。
7 × 8 + 15 =
60 - 4 × 9 =
(12 + 18) ÷ 5 =
8 × (15 - 7) =
45 + 63 ÷ 9 =
72 ÷ 8 + 35 =
9 × 6 - 28 =
49 ÷ 7 + 56 =
(35 + 21) ÷ 7 =
6 × (24 - 16) =
80 - 42 ÷ 6 =
5 × 9 + 36 =
(42 - 14) ÷ 4 =
9 × (36 ÷ 6) =
63 + 7 × 5 =
81 ÷ 9 - 6 =
7 × (12 + 18) =
100 - (45 + 27) =
48 ÷ (15 - 7) =
6 × 8 + 47 =
二 、脱式计算。
7×320-81
358×2+106
175×7-640
9×415-63
32 + 5 × 7 - 28
90 ÷ (15 - 6) + 24
7 × (24 + 18) - 120
150 - (64 - 35) + 28
三、列竖式计算。
89×6=
537×3=
624×4=
385×7=
365 + 278 - 196 =
900 - 456 - 278 =
256 + (438 - 179) =
805 - (267 + 354) =
第1天 同级运算(1)
一、直接写出得数
35 + 27 = 62
68 - 39 = 29
46 + 38 = 84
80 - 25 = 55
52 + 36 = 88
73 - 28 = 45
29 + 65 = 94
90 - 47 = 43
36 + 57 = 93
71 - 35 = 36
43 + 39 = 82
82 - 56 = 26
28 + 64 = 92
91 - 53 = 38
55 + 37 = 92
70 - 26 = 44
33 + 59 = 92
85 - 48 = 37
42 + 49 = 91
63 - 37 = 26
二、列竖式计算
345 + 267 = 612(竖式:个位5+7=12进1,十位4+6+1=11进1,百位3+2+1=6)
683 - 259 = 424(竖式:个位3-9不够减借1当10,十位8借1剩7,7-5=2,百位6-2=4)
456 + 378 = 834(竖式:个位6+8=14进1,十位5+7+1=13进1,百位4+3+1=8)
805 - 436 = 369(竖式:个位5-6不够减借1,十位0借1剩9,9借1剩8,8-3=5,百位8借1剩7,7-4=3)
三、脱式计算
1. 35 + 27 + 18 = 62 + 18 = 80
2. 80 - 25 - 36 = 55 - 36 = 19
3. 46 + 38 - 29 = 84 - 29 = 55
4. 92 - 47 + 35 = 45 + 35 = 80
第2天 同级运算(2)
一、口算题
37 + 46 = 83
83 - 38 = 45
54 + 29 = 83
70 - 36 = 34
65 + 28 = 93
92 - 57 = 35
43 + 49 = 92
81 - 45 = 36
39 + 54 = 93
76 - 38 = 38
52 + 39 = 91
90 - 53 = 37
47 + 36 = 83
85 - 49 = 36
38 + 55 = 93
73 - 36 = 37
56 + 27 = 83
88 - 43 = 45
42 + 59 = 101
91 - 56 = 35
二、列竖式计算
568 + 275 = 843(个位8+5=13进1,十位6+7+1=14进1,百位5+2+1=8)
904 - 367 = 537(个位4-7借1,十位0借1剩9,9借1剩8,8-6=2,百位9借1剩8,8-3=5)
386 + 457 = 843(个位6+7=13进1,十位8+5+1=14进1,百位3+4+1=8)
753 - 289 = 464(个位3-9借1,十位5借1剩4,4-8借1剩14,14-8=6,百位7借1剩6,6-2=4)
三、脱式计算
1. 28 + 64 + 19 = 92 + 19 = 111
2. 91 - 53 - 27 = 38 - 27 = 11
3. 55 + 37 - 46 = 92 - 46 = 46
4. 85 - 48 + 29 = 37 + 29 = 66
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第3天 两级运算(1)
一、口算题
6 × 7 = 42
35 ÷ 7 = 5
8 × 4 = 32
42 ÷ 6 = 7
9 × 5 = 45
45 ÷ 9 = 5
7 × 6 = 42
56 ÷ 8 = 7
8 × 6 = 48
36 ÷ 4 = 9
5 × 7 = 35
49 ÷ 7 = 7
9 × 6 = 54
63 ÷ 9 = 7
6 × 8 = 48
48 ÷ 6 = 8
7 × 8 = 56
54 ÷ 9 = 6
9 × 4 = 36
32 ÷ 4 = 8
二、列竖式计算
26 × 3 = 78
85 ÷ 5 = 17
37 × 2 = 74
96 ÷ 3 = 32
三、脱式计算(先乘除后加减)
1. 25 + 3 × 8 = 25 + 24 = 49
2. 40 - 6 × 5 = 40 - 30 = 10
3. 7 × 4 + 29 = 28 + 29 = 57
4. 60 - 42 ÷ 7 = 60 - 6 = 54
第4天 两级运算(2)
一、口算题
6 × 7 = 42
28 ÷ 4 = 7
9 × 3 = 27
54 ÷ 6 = 9
7 × 8 = 56
36 ÷ 4 = 9
5 × 9 = 45
63 ÷ 7 = 9
8 × 6 = 48
40 ÷ 5 = 8
7 × 5 = 35
56 ÷ 8 = 7
4 × 9 = 36
32 ÷ 8 = 4
6 × 8 = 48
45 ÷ 9 = 5
9 × 7 = 63
64 ÷ 8 = 8
5 × 6 = 30
42 ÷ 7 = 6
二、列竖式计算
48 × 2 = 96
96 ÷ 4 = 24
57 × 3 = 171
84 ÷ 6 = 14
三、脱式计算(先乘除后加减)
1. 32 + 5 × 7 = 32 + 35 = 67
2. 60 - 4 × 8 = 60 - 32 = 28
3. 7 × 8 - 29 = 56 - 29 = 27
4. 45 + 63 ÷ 9 = 45 + 7 = 52
第5天 含小括号(1)
一、口算题(先算括号内)
(3 + 5) × 2 = 8 × 2 = 16
24 ÷ (4 + 2) = 24 ÷ 6 = 4
(10 - 6) × 5 = 4 × 5 = 20
36 ÷ (9 - 5) = 36 ÷ 4 = 9
7 × (2 + 5) = 7 × 7 = 49
49 ÷ (15 - 8) = 49 ÷ 7 = 7
(6 + 3) × 8 = 9 × 8 = 72
64 ÷ (4 × 2) = 64 ÷ 8 = 8
5 × (12 - 7) = 5 × 5 = 25
48 ÷ (12 ÷ 2) = 48 ÷ 6 = 8
(9 + 7) ÷ 4 = 16 ÷ 4 = 4
6 × (11 - 5) = 6 × 6 = 36
(20 - 8) ÷ 3 = 12 ÷ 3 = 4
8 × (4 + 3) = 8 × 7 = 56
(35 + 14) ÷ 7 = 49 ÷ 7 = 7
9 × (15 - 6) = 9 × 9 = 81
(42 - 14) ÷ 7 = 28 ÷ 7 = 4
5 × (24 ÷ 3) = 5 × 8 = 40
(8 + 16) ÷ 6 = 24 ÷ 6 = 4
7 × (36 ÷ 6) = 7 × 6 = 42
二、列竖式计算(先算括号内)
(256 + 178) -34= 400(括号内直接相加,竖式略)
805 - (367 + 254) = 805 - 621 = 184(先算367+254=621,再算减法)
(456 - 278) + 369 = 178 + 369 = 547(先算456-278=178,再算加法)
900 - (456 + 278) = 900 - 734 = 166(先算456+278=734,再算减法)
三、脱式计算(先算括号内)
1. (25 + 15) × 8 = 40 × 8 = 320
2. 90 ÷ (15 - 6) = 90 ÷ 9 = 10
3. 7 × (24 + 18) = 7 × 42 = 294
4. 64 - (35 - 17) = 64 - 18 = 46
第6天 含小括号(2)
一、口算题(先算括号内)
(4 + 5) × 3 = 9 × 3 = 27
36 ÷ (3 + 3) = 36 ÷ 6 = 6
(15 - 7) × 4 = 8 × 4 = 32
42 ÷ (13 - 6) = 42 ÷ 7 = 6
6 × (3 + 6) = 6 × 9 = 54
56 ÷ (12 - 5) = 56 ÷ 7 = 8
(8 + 4) × 6 = 12 × 6 = 72
72 ÷ (3 × 3) = 72 ÷ 9 = 8
8 × (14 - 9) = 8 × 5 = 40
54 ÷ (18 ÷ 3) = 54 ÷ 6 = 9
(12 + 18) ÷ 5 = 30 ÷ 5 = 6
7 × (13 - 6) = 7 × 7 = 49
(25 - 7) ÷ 3 = 18 ÷ 3 = 6
9 × (5 + 4) = 9 × 9 = 81
(42 + 21) ÷ 7 = 63 ÷ 7 = 9
8 × (16 - 7) = 8 × 9 = 72
(49 - 14) ÷ 7 = 35 ÷ 7 = 5
6 × (32 ÷ 4) = 6 × 8 = 48
(15 + 21) ÷ 6 = 36 ÷ 6 = 6
9 × (42 ÷ 7) = 9 × 6 = 54
二、列竖式计算(先算括号内)
(368 + 257) = 625(括号内直接相加,竖式略)
900 - (436 + 287) = 900 - 723 = 177(先算436+287=723,再算减法)
(567 - 389) + 456 = 178 + 456 = 634(先算567-389=178,再算加法)
1000 - (567 + 289) = 1000 - 856 = 144(先算567+289=856,再算减法)
三、脱式计算(先算括号内)
1. (35 + 25) × 7 = 60 × 7 = 420
2. 120 ÷ (18 - 12) = 120 ÷ 6 = 20
3. 8 × (36 + 24) = 8 × 60 = 480
4. 75 - (46 - 18) = 75 - 28 = 47
第7天 综合练习
一、口算题(先乘除后括号,再加减)
7 × 8 + 15 = 56 + 15 = 71
60 - 4 × 9 = 60 - 36 = 24
(12 + 18) ÷ 5 = 30 ÷ 5 = 6
8 × (15 - 7) = 8 × 8 = 64
45 + 63 ÷ 9 = 45 + 7 = 52
72 ÷ 8 + 35 = 9 + 35 = 44
9 × 6 - 28 = 54 - 28 = 26
49 ÷ 7 + 56 = 7 + 56 = 63
(35 + 21) ÷ 7 = 56 ÷ 7 = 8
6 × (24 - 16) = 6 × 8 = 48
80 - 42 ÷ 6 = 80 - 7 = 73
5 × 9 + 36 = 45 + 36 = 81
(42 - 14) ÷ 4 = 28 ÷ 4 = 7
9 × (36 ÷ 6) = 9 × 6 = 54
63 + 7 × 5 = 63 + 35 = 98
81 ÷ 9 - 6 = 9 - 6 = 3
7 × (12 + 18) = 7 × 30 = 210
100 - (45 + 27) = 100 - 72 = 28
48 ÷ (15 - 7) = 48 ÷ 8 = 6
6 × 8 + 47 = 48 + 47 = 95
二、脱式计算(按运算顺序)
1. 7×320 - 81 = 2240 - 81 = 2159
2. 358×2 + 106 = 716 + 106 = 822
3. 175×7 - 640 = 1225 - 640 = 585
4. 9×415 - 63 = 3735 - 63 = 3672
5. 32 + 5×7 - 28 = 32 + 35 - 28 = 67 - 28 = 39
6. 90 ÷ (15 - 6) + 24 = 90 ÷ 9 + 24 = 10 + 24 = 34
7. 7×(24 + 18) - 120 = 7×42 - 120 = 294 - 120 = 174
8. 150 - (64 - 35) + 28 = 150 - 29 + 28 = 121 + 28 = 149
三、列竖式计算
89×6 = 534(个位9×6=54进5,十位8×6+5=53)
537×3 = 1611(个位7×3=21进2,十位3×3+2=11进1,百位5×3+1=16)
624×4 = 2496(个位4×4=16进1,十位2×4+1=9,百位6×4=24)
385×7 = 2695(个位5×7=35进3,十位8×7+3=59进5,百位3×7+5=26)
365 + 278 - 196 = 643 - 196 = 447(先加后减)
900 - 456 - 278 = 444 - 278 = 166(从左到右减)
256 + (438 - 179) = 256 + 259 = 515(先算括号内)
805 - (267 + 354) = 805 - 621 = 184(先算括号内)
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