摘要:64+3.85+1.54= 8×1.25= 5.6÷3.5= 4.2÷0.7÷6= 0.4×8.6×25=
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口算
(1)70×80=
(2)3.8+2.5+6.2=
(3)
+
--
=
1.4×5=
(4)3.14×3=
+
=
(5)3.99+5.2=
(6)22×0.2=
(7)0.8×0.8=
(8)340÷17=
(9)1.5×4=
(10)0.28×100=
(11)340+120=
+
=
2.5÷5=
(12)12-
-
=
(13)3.08÷0.1=
(14)4.3-2.7=
(15)2.6÷26=
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(1)70×80=
5600
5600
3.7×0.5=1.85
1.85
3.2×100=320
320
8.9-3.8=5.1
5.1
(2)3.8+2.5+6.2=
12.5
12.5
12-6.2-3.8=2
2
1.7+0.43+3.3=5.43
5.43
3.4-1.5-0.5=1.4
1.4
(3)
| 8 |
| 9 |
| 1 |
| 9 |
| 2 |
| 7 |
| 5 |
| 7 |
| 5 |
| 7 |
7
7
650-470=180
180
79+2.1=81.1
81.1
(4)3.14×3=
9.42
9.42
6.7+3.4=10.1
10.1
2.01×0.4=0.804
0.804
| 6 |
| 13 |
| 7 |
| 13 |
1
1
(5)3.99+5.2=
9.19
9.19
23+6.68=29.68
29.68
7×0.08=0.56
0.56
0.25×0.4=0.1
0.1
(6)22×0.2=
4.4
4.4
99.9+1=100.9
100.9
0.72÷6=0.12
0.12
3.9÷1.3=3
3
(7)0.8×0.8=
0.64
0.64
5.88+3.12=9
9
1.9+2.1=4
4
26÷2.6=10
10
(8)340÷17=
20
20
9.3÷0.3=31
31
13×4=52
52
3.6×5=18
18
(9)1.5×4=
6
6
20×16=320
320
28×3=84
84
3.2÷4=0.8
0.8
(10)0.28×100=
28
28
3200÷1000=3.2
3.2
0.5×100=50
50
4×0.125=0.5
0.5
(11)340+120=
460
460
| 1 |
| 4 |
| 1 |
| 2 |
| 3 |
| 4 |
| 3 |
| 4 |
0.5
0.5
4.95×10=49.5
49.5
(12)12-
| 1 |
| 2 |
| 1 |
| 2 |
11
11
1÷0.25=4
4
5×0.13=0.65
0.65
12×0.05=0.6
0.6
(13)3.08÷0.1=
30.8
30.8
0.35×6=2.1
2.1
25÷0.5=50
50
1.5×3=4.5
4.5
(14)4.3-2.7=
1.6
1.6
8.1÷0.9=9
9
12÷1.2=10
10
0.48÷6=0.08
0.08
(15)2.6÷26=
0.1
0.1
0.72×5=3.6
3.6
4.8+3.2=8
8
5.7÷0.3=19
19
.| 4.7+2.3= | 4.5×2= | 6.9-2.5= | 7.2×0.8= |
| 6×3.4= | 0.62-0.32= | 1.4×0.5= | 0.75×100= |
| 0.02×0.5= | 3.6÷0.3= | 6.3÷7= | 5.6÷100= |
| 0.75÷0.25= | 0.125×8= | 4.8÷0.3= | 0.96÷2= |
| 0.56÷28= | 0.36÷0.4= | 0.64÷0.8= | 0.72÷3.6= |
| 3.6÷24= | 0.8×1.1= | 7.2+12.8= | 46.7-3.8= |
| 12.8÷4= | 5.2÷13= | 12.5÷5= | 1.64÷41= |
| 10÷20= | 24÷15= | 8.65×10= | 0.35×0.6= |
| 3.08×0.01= | 4.95×1000= | 6.9×0.1= | 0.4×0.5= |
| 2.4÷0.8= | 10.8÷9= | 9.6÷0.8= | 0.108÷2= |
| 4.95÷0.9= | 9.65÷0.1= | 0.325×100= | 2.5×8= |
| 0.56÷0.7= | 0.125×4= | 3.28×0.1= | 3.9÷0.13= |
| 7.2×0.1= | 0.01×0.1= | 0.25×0.4= | 1.6÷0.8= |
| 1÷2.5= | 1.25×0.8= | 3.2÷0.04= | 0÷1.7= |
| 0.22×102= | 9.6÷0.8= | 5×0.24= | 4.5-0.05= |
| 3.9÷0.13 | 16.5÷0.5= | 5×0.12= | 24×0.5= |
| 4.8×0.5= | 2.8+4.2= | 0.84÷2.1= | 5÷0.25= |
| 7.8÷0.01= | 5.4÷0.6= | 3.2÷5= | 7×0.62= |
| 0.56÷0.8= | 7.4-2.8= | 0.18÷0.2= | 0.16÷8= |
| 4.5×0.02= | 8+7.2= | 1.2×30= | 0.012×0.2= |
| 7.3×0.3= | 9÷6= | 3.6÷0.12= | 7.8÷0.6= |
| 2÷5= | 4.5+5= | 0.3÷0.6= | 0.96÷0.2= |
| 10.5×0.4= | 7.3+0.27= | 8×0.125= | 0.54÷0.6= |
| 0.61+0.39= | 0.56÷28= | 10÷20= | 4.08÷0.4= |
| 11-9.4= | 0.8×0.11= | 0.72+12.8= | 5.6÷0.01= |
| 2.3×100= | 0.75×100= | 0.108÷2= | 10.8÷9= |
| 0.7÷0.8= | 16-5.07= | 4.2×0.4= | 0.72×6= |
| 12÷0.5= | 5.2×0.4= | 12.2÷0.2= | 5.6÷100= |
| 0.41+3.7= | 0.02×0.5= | 7.2-0.8= | 1.4×0.5= |
| 84÷0.21= | 0.75÷0.25= | 2.5×16= | 0.108÷2= |
| 1.75+32.5= | 16-5.07= | 5.2÷13= | 1.64÷41= |
| 1.02×0.2= | 0.26×0.3= | 8.4×0.02= | 1.29×6= |
| 0.8×0.05= | 12.6÷0.03= | 8.71÷0.1= | 21÷0.21= |
| 0.8×0.13= | 0.34÷17= | 8.08÷0.4= | 0.5×2.2= |
| 1.24÷4= | 3.27+0.63= | 5.02×0.3= | 0.3×0.5= |
| 6.4÷4= | 7.2÷1.8= | 0.7÷0.35= | 0.72÷1.44= |
| 0.48÷0.04= | 1.25÷2.5= | 5.5+55= | 16.8÷8= |
| 0.54+2.2= | 3.5-0.05= | 2÷0.02= | 0.25×40= |
| 1.5×0.6= | 0.32÷0.8= | 12.25÷0.5= | 73.5×0.1= |
| 46.5+52.5= | 0.45×102= | 1.25×88= | 2.64+3.85+1.54= |
| 8×1.25= | 5.6÷3.5= | 4.2÷0.7÷6= | 0.4×8.6×25= |
| 0.27÷0.3= | 2.5×101= | 0.65×101-0.65= | 2.6×7÷2.6×7= |
| 4.7+2.3= | 4.5×2= | 6.9-2.5= | 7.2×0.8= |
| 6×3.4= | 0.62-0.32= | 1.4×0.5= | 0.75×100= |
| 0.02×0.5= | 3.6÷0.3= | 6.3÷7= | 5.6÷100= |
| 0.75÷0.25= | 0.125×8= | 4.8÷0.3= | 0.96÷2= |
| 0.56÷28= | 0.36÷0.4= | 0.64÷0.8= | 0.72÷3.6= |
| 3.6÷24= | 0.8×1.1= | 7.2+12.8= | 46.7-3.8= |
| 12.8÷4= | 5.2÷13= | 12.5÷5= | 1.64÷41= |
| 10÷20= | 24÷15= | 8.65×10= | 0.35×0.6= |
| 3.08×0.01= | 4.95×1000= | 6.9×0.1= | 0.4×0.5= |
| 2.4÷0.8= | 10.8÷9= | 9.6÷0.8= | 0.108÷2= |
| 4.95÷0.9= | 9.65÷0.1= | 0.325×100= | 2.5×8= |
| 0.56÷0.7= | 0.125×4= | 3.28×0.1= | 3.9÷0.13= |
| 7.2×0.1= | 0.01×0.1= | 0.25×0.4= | 1.6÷0.8= |
| 1÷2.5= | 1.25×0.8= | 3.2÷0.04= | 0÷1.7= |
| 0.22×102= | 9.6÷0.8= | 5×0.24= | 4.5-0.05= |
| 3.9÷0.13 | 16.5÷0.5= | 5×0.12= | 24×0.5= |
| 4.8×0.5= | 2.8+4.2= | 0.84÷2.1= | 5÷0.25= |
| 7.8÷0.01= | 5.4÷0.6= | 3.2÷5= | 7×0.62= |
| 0.56÷0.8= | 7.4-2.8= | 0.18÷0.2= | 0.16÷8= |
| 4.5×0.02= | 8+7.2= | 1.2×30= | 0.012×0.2= |
| 7.3×0.3= | 9÷6= | 3.6÷0.12= | 7.8÷0.6= |
| 2÷5= | 4.5+5= | 0.3÷0.6= | 0.96÷0.2= |
| 10.5×0.4= | 7.3+0.27= | 8×0.125= | 0.54÷0.6= |
| 0.61+0.39= | 0.56÷28= | 10÷20= | 4.08÷0.4= |
| 11-9.4= | 0.8×0.11= | 0.72+12.8= | 5.6÷0.01= |
| 2.3×100= | 0.75×100= | 0.108÷2= | 10.8÷9= |
| 0.7÷0.8= | 16-5.07= | 4.2×0.4= | 0.72×6= |
| 12÷0.5= | 5.2×0.4= | 12.2÷0.2= | 5.6÷100= |
| 0.41+3.7= | 0.02×0.5= | 7.2-0.8= | 1.4×0.5= |
| 84÷0.21= | 0.75÷0.25= | 2.5×16= | 0.108÷2= |
| 1.75+32.5= | 16-5.07= | 5.2÷13= | 1.64÷41= |
| 1.02×0.2= | 0.26×0.3= | 8.4×0.02= | 1.29×6= |
| 0.8×0.05= | 12.6÷0.03= | 8.71÷0.1= | 21÷0.21= |
| 0.8×0.13= | 0.34÷17= | 8.08÷0.4= | 0.5×2.2= |
| 1.24÷4= | 3.27+0.63= | 5.02×0.3= | 0.3×0.5= |
| 6.4÷4= | 7.2÷1.8= | 0.7÷0.35= | 0.72÷1.44= |
| 0.48÷0.04= | 1.25÷2.5= | 5.5+55= | 16.8÷8= |
| 0.54+2.2= | 3.5-0.05= | 2÷0.02= | 0.25×40= |
| 1.5×0.6= | 0.32÷0.8= | 12.25÷0.5= | 73.5×0.1= |
| 46.5+52.5= | 0.45×102= | 1.25×88= | 2.64+3.85+1.54= |
| 8×1.25= | 5.6÷3.5= | 4.2÷0.7÷6= | 0.4×8.6×25= |
| 0.27÷0.3= | 2.5×101= | 0.65×101-0.65= | 2.6×7÷2.6×7= |
| (1)438+203 | (2)256+199 | (3)416-302 | (4)325-198 |
| (5)278+498 | (6)3.6+2.7+6.4+7.3 | (7) | (8)1.3+4.25+3.7+3 |
| (9)1874-324-476 | (10)5-1.4-1.6 | (11)30-8.12-4.13-7.75 | (12) |
| (13)4.3-2.45+5.7-6.55 | (14)125×48 | (15)25×32 | (16)35×1.4 |
| (17)1.25×88 | (18)0.25×444 | (19)32×0.25×12.5 | (20)25×80×0.04×125 |
| (21)1.9×4×0.5 | (22)25×1.25×4×0.8 | (23)(1.6+1.6+1.6+1.6)×2.5 | (24)(0.7+0.7…+0.7)×12.5(80个0.7相加) |
| (24)9.9×8.6+8.6 | (25)99×5.4 | ||
| (26)4.8×1.01 | (27)95×101-95 | (28)95×102-190 | (29)95.6×18+0.4×18 |
| (30)( | (31)( | (32)24×( | (33)24÷( |
| (34)1.25×3.6+1.25× | (35)3.3× | (36) | (37)9.56×180-95.6×8 |
| (38)4.8×37+47×6.3 | (39)9.5×8.8+0.12×95 | (40) | (41) |
| (42) | (43) | (44) | (45)6×0.75+5× |
| (46)5.4÷1.2÷5 | (47)270÷18 | (48)120÷(1.2×4) | (49)73÷0.8÷12.5 |
| (50)16÷2.5 | (51)48÷1.25 | (52) | (53)84-(54-16) |
| (54)84-(54+16) | (55)9999×7778+3333×6666 | (56)3.6×31.4+43.9×6.4 | (57)( |
| (58) | (59) | (60) | (61) |
| (62) | (63) | (64)(0.9+5)×3+2.3 | (65)56× |
| (66) | (67)( | (68) | (69)( |
| (70)7.2÷(5-0.75-0.25) | (71)6.4+3.6÷0.5+4.5 | (72)(6.4+3.6)÷0.5+4.5 | (73)495÷55+495÷45 |
| (74)8÷0.4+8÷1.6 | (75)0.9+99×0.9 | (76)5.28-(1.62+2.28) | (77) |
| (78)4×( | (79) | (80)2-( | (81) |
| (82) | (83) | (84)(5+ | (85)( |
| (86)(20+ | (87) | (88) | (89)( |
| (90) | (91) | (92)17× | (93)( |
| (94)( | (95)( | (96)( | (97) |
| (98) | (99)(21+ | (100) | (101) |
| (102)( | (103) | (104) | (105) |
| (106) | (107)1- | (108) | (109)5-(4+ |
| (110)1125-997 | (111)7.46-0.83-2.17 | (112)12.85-1.17-8.83+1.15 | (113)4.5×102 |
| (114)0.4×6.3×25 | (115)(4.9+4.9+…+4.9)×2.5(16个4.9相加) | (116)7.5×199 | (117)( |
| (118)1.2×5.7-1.2+5.3×1.2 | (119)0.825×102-82.5 | (120)46× | (121)560÷16÷5 |
| (122)3÷2.5 | (123)84+(54-16) | (124) | (125) |
| (126)3×( | (127)7.2÷(5-0.75+0.25) | (128)725÷25+275÷25 | (129) |
| (130) | (131)48×( | (132) | (133)(32+ |
| (134) | (135)46× | (136) |