分析:根據(jù)分?jǐn)?shù)除法的計(jì)算方法,可把
÷9變成
×,進(jìn)而用乘法分配律進(jìn)行簡算.
點(diǎn)評(píng):此題考查分?jǐn)?shù)的簡便計(jì)算,根據(jù)題中的數(shù)據(jù)特點(diǎn),創(chuàng)造出能用運(yùn)算定律簡算的形式,再簡算.
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科目:小學(xué)數(shù)學(xué)
來源:
題型:
3.6÷1.2= 3 3 |
5×4=20 20 |
8+3.7= 11.7 11.7 |
0.8+1.5= 2.3 2.3 |
3÷0.5= 6 6 |
9-2.1= 6.9 6.9 |
0.14×6= 0.84 0.84 |
4.2-3.7= 0.5 0.5 |
+= 1 1 |
80÷0.5= 160 160 |
-= |
2.1÷30= 0.07 0.07 |
0.8×12= 9.6 9.6 |
1-0.19= 0.81 0.81 |
5.2-0.5= 4.7 4.7 |
0.49+0.22= 0.71 0.71 |
1.3+0.07= 1.37 1.37 |
4-= |
7.2÷0.18= 40 40 |
++=. |
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科目:小學(xué)數(shù)學(xué)
來源:
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 |
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科目:小學(xué)數(shù)學(xué)
來源:
題型:
1÷0.08= 12.5 12.5 |
÷= |
2÷×= 10 10 |
×4÷= |
:15= |
:= |
÷×= |
×÷= |
3.4×0.4= 1.36 1.36 |
12.6-0.9= 11.7 11.7 |
2-1.64-0.36﹦ 0 0 |
1.2÷0.04= 30 30 |
0.42÷7= 0.06 0.06 |
1.25×3.3×0﹦ 0 0 |
0.9+2.01= 2.91 2.91 |
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