4.5+5.5= | 0.43×100= | 9.8-4.8= | 2.5÷100= |
0.7+0.23= | 100÷1000= | 3.4×0.2= | 0.9-0.09= |
0.8×6= | 0,5×0.1= | 1÷0.5= | 5,6÷1= |
32-6= | 2.75+1.25= | 2.5×4= | 1.25×8= |
0.81÷3÷3= | 600÷25÷4= | 0.125×32×8= | 1.7×0.25×4= |
解:4.5+5.5=10,0.43×100=43,9.8-4.8=5,2.5÷100=0.025,
0.7+0.23=0.93,100÷1000=0.1,3.4×0.2=0.68,0.9-0.09=0.81,
0.8×6=4.8,0.5×0.1=0.05,1÷0.5=2,5.6÷1=5.6,
32-6=3,2.75+1.25=4,2.5×4=10,1.25×8=10,
0.81÷3÷3=0.09,600÷25÷4=6,0.125×32×8=32,1.7×0.25×4=1.7.
故此題答案為:10,43,5,0.025,0.93,0.1,0.68,0.81,4.8,0.05,2,5.6,3,4,10,10,0.09,6,32,1.7.
分析:0.43×100把0.43的小數(shù)點(diǎn)向右移動(dòng)2位即可;32-6表示3×3-6,所以要先算32,再算減法;0.81÷3÷3,600÷25÷4,根據(jù)瀨尿蝦除以?xún)蓚(gè)數(shù)等于除以這兩個(gè)數(shù)的積來(lái)簡(jiǎn)算;
0.125×32×8運(yùn)用乘法交換律簡(jiǎn)算;1.7×0.25×4運(yùn)用乘法結(jié)合律簡(jiǎn)算;其它題目按照運(yùn)算法則直接求解.
點(diǎn)評(píng):本題是基本的計(jì)算題目,計(jì)算時(shí)要細(xì)心,注意小數(shù)點(diǎn)的位置.
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題
科目:小學(xué)數(shù)學(xué)
來(lái)源:
題型:
口算 9.5×100= |
1.25×8 |
0.25×0.9×4= |
1.87×0= |
3.5-1.5= |
1.2×0.4= |
3.6×0.5= |
0.6×5= |
0.24+0.6= |
0.64×0.03= |
7.8+2.2-1.5= |
8×0.05= |
0.125×8= |
1.3×4= |
0.4×0.6= |
3×0.08= |
0.35×2= |
2.9×0.3= |
10-0.9= |
5.67×0= |
0.8×0.01= |
2.5×0.2= |
2.4×0.3= |
1.6×0.25= |
0.17×0.3= |
15×0.01= |
10×0.07= |
0.7×0.05= |
0.2×0.05= |
7.8×0.01= |
0.2×0.26= |
0.04×4= |
12.4+2.1= |
0.08×0.5= |
0.14×4= |
9×2.5+9×1.5= |
1.8×0.5= |
2.3×5= |
0.3×3.6= |
8×0.9+8×2.1= |
2.5×4= |
0.8+2.7×2= |
0.05×7= |
4.8+2.1+7.9= |
3.4-1.8= |
2.5+0.2×2= |
0.02×0.1= |
5.4-2.8= |
0.3×0.2= |
3.5×2×0.1= |
0.3×0.3= |
0×10.3×2.2= |
0.12×0.7= |
0.2×0.5= |
0.92×0.4= |
6.7-1.43= |
1.2×4= |
1.3×2= |
1.2×0.3= |
4.6+5.08= |
查看答案和解析>>
科目:小學(xué)數(shù)學(xué)
來(lái)源:
題型:閱讀理解
1.
(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)+++2 |
(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個(gè)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)(-+)×12 |
(31)(+-)÷ |
(32)24×(+-) |
(33)24÷(+-) |
(34)1.25×3.6+1.25×3+1 |
(35)3.3×+0.75×5+75% |
(36)2×6.6+7.5×6 |
(37)9.56×180-95.6×8 |
(38)4.8×37+47×6.3 |
(39)9.5×8.8+0.12×95 |
(40)×21 |
(41)×33 |
(42)÷ |
(43)÷ |
(44)÷42 |
(45)6×0.75+5×-3÷4 |
(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)×9+ |
(84)(5+)× |
(85)(+)×24 |
(86)(20+)× |
(87)×39× |
(88)×(+) |
(89)(-)×12 |
(90)×(26×) |
(91)+++ |
(92)17×- |
(93)(+)× |
(94)(+)÷ |
(95)(+)÷3 |
(96)(-)÷ |
(97)÷+÷ |
(98)×(10+) |
(99)(21+)÷ |
(100)×+× |
(101)÷+÷ |
(102)(-)÷ |
(103)×++ |
(104)_×- |
(105)-(÷+) |
(106)+×+ |
(107)1-÷- |
(108)×+÷4 |
(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個(gè)4.9相加) |
(116)7.5×199 |
(117)(+)×36 |
(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)×45-÷ |
(131)48×(-) |
(132)×+× |
(133)(32+)÷4 |
(134)÷÷ |
(135)46× |
(136)×+÷9 |
|
查看答案和解析>>
科目:小學(xué)數(shù)學(xué)
來(lái)源:
題型:
1--= |
-= 1 1 |
1.8÷0.9×0.5= 1 1 |
2-1.08= 0.92 0.92 |
8.8÷0.4= 22 22 |
(1.6+0.5)÷5= 0.42 0.42 |
43×0.01﹦ 0.43 0.43 |
3.72×0.2= 0.744 0.744 |
0.7×8-0.5= 5.1 5.1 |
99+0.1﹦ 99.1 99.1 |
3.2-2= 1.2 1.2 |
6×0.125×8= 6 6 |
1.9×4﹦ 7.6 7.6 |
8.8÷0.11= 80 80 |
4×1.2×0.25= 1.2 1.2 |
0.125×80﹦ 10 10 |
1.8×40= 72 72 |
2.5-3.6÷1.8= 0.5 0.5 |
8×5.1= 40.8 40.8 |
12-0.05×4= 11.8 11.8 . |
查看答案和解析>>
科目:小學(xué)數(shù)學(xué)
來(lái)源:
題型:解答題
9.5×100= | 1.25×8 | 0.25×0.9×4= | 1.87×0= |
3.5-1.5= | 1.2×0.4= | 3.6×0.5= | 0.6×5= |
0.24+0.6= | 0.64×0.03= | 7.8+2.2-1.5= | 8×0.05= |
0.125×8= | 1.3×4= | 0.4×0.6= | 3×0.08= |
0.35×2= | 2.9×0.3= | 10-0.9= | 5.67×0= |
0.8×0.01= | 2.5×0.2= | 2.4×0.3= | 1.6×0.25= |
0.17×0.3= | 15×0.01= | 10×0.07= | 0.7×0.05= |
0.2×0.05= | 7.8×0.01= | 0.2×0.26= | 0.04×4= |
12.4+2.1= | 0.08×0.5= | 0.14×4= | 9×2.5+9×1.5= |
1.8×0.5= | 2.3×5= | 0.3×3.6= | 8×0.9+8×2.1= |
2.5×4= | 0.8+2.7×2= | 0.05×7= | 4.8+2.1+7.9= |
3.4-1.8= | 2.5+0.2×2= | 0.02×0.1= | 5.4-2.8= |
0.3×0.2= | 3.5×2×0.1= | 0.3×0.3= | 0×10.3×2.2= |
0.12×0.7= | 0.2×0.5= | 0.92×0.4= | 6.7-1.43= |
1.2×4= | 1.3×2= | 1.2×0.3= | 4.6+5.08= |
查看答案和解析>>
科目:小學(xué)數(shù)學(xué)
來(lái)源:
題型:解答題
口算 1.2÷0.2= | 2.5×4= | 0.25+4= | 1.87×0= |
3.5+0.5= | 1.2÷0.4= | 3.6÷4= | 0÷1.25= |
0.12×6= | 0.64×0.03= | 5.8+4.2-6.5= | 7.8÷3= |
0.125×8= | 2.8÷1.4= | 0.25÷0.5= | 7.21÷7= |
0.35÷10= | 3.6÷3= | 6.3÷0.9= | 0.54÷6= |
0.3×0.1= | 1.3÷2= | 0.4÷8=2 | 7.3÷3= |
0.51÷0.3= | 15÷0.01= | 5÷10= | 0.7×12= |
0.2×0.5= | 3.8×0.1= | 0.2×0.2= | 0.04×0.4= |
12.4+7.6= | 8×0.5= | 0.72÷36= | 9×2.5+2.5= |
1.8÷3= | 2.3÷2= | 6.5÷5= | 2.14÷2= |
2.5×4= | 2.7×2= | 0.5×7= | 4.8+3.6+5.2= |
3.4÷1.7= | 2.5+0.2= | 4.5÷5= | 5+2.8= |
0.8×0.3= | 13.5×2×0= | 5.25÷5= | 4×2.2= |
0.12×0.5= | 1.8×5= | 6.24÷2= | 2.83-1.43= |
1.2+2.9= | 3.8÷2= | 1.32×3= | 4.6×7= |
查看答案和解析>>