分析:4-1=3,7-4=3,10-7=3;后一個數(shù)比前一個數(shù)多3,由此求解.
解答:解:10+3=13;
故答案為:13.
點評:本題關(guān)鍵是找出相鄰兩個數(shù)的差都是3這一規(guī)律,再由此進行求解.
練習(xí)冊系列答案
相關(guān)習(xí)題
科目:小學(xué)數(shù)學(xué)
來源:
題型:
180÷60= |
12×25= |
0÷90= |
4×5÷4×5= |
0.25×4+4= |
131+218+269+182= |
25×6×4= |
420÷35= |
36×5×4= |
120÷5÷3= |
198-75-25= |
120-20÷5= |
59億-58億= |
(1.3+3.5)÷0.6= |
75÷2.5= |
0.45÷1.25÷8= |
2.5×7.6×4= |
97.6÷0.02= |
8.8-(0.25+0.4)= |
0.25+87+0.75= |
0.8-0.35×2= |
0.1÷0.01×0.1= |
9.9+9.9×99= |
2.7×3.6+6.4×2.7= |
720÷8÷9= |
2.9+5.7+2.1= |
2-0.16-0.64= |
16.7+84.5-16.7= |
6.8-(3.8+2.9)= |
9×1.3+9×6.7= |
5.5-5.25+5.2= |
0.8×25-10= |
42.8×25×4= |
7.2+2.8= |
0.9÷0.01= |
3.5+7.6= |
3×0.2×0.5= |
0.96÷0.3= |
1.5×0.4= |
7÷0.25= |
2.5×0.7×0.8= |
8-2.5= |
16÷1.6= |
5.6×1.01= |
8×(2.5+0.25)= |
0.36+0.64= |
64.32÷16= |
72.8÷0.8= |
8.4×0.2+1.6×0.2= |
8.4÷4.2= |
0.05×0.8= |
2.56-0.37= |
1.23×3= |
25×0.8×0.5= |
12×2.5= |
3.2÷1.6= |
3.5+3.5×3= |
19.6÷2= |
8.8÷2.2= |
3.9+2.03= |
7.2×0.3+2.8×0.3= |
13.8+9.9= |
2.4×2.5= |
0.75×4= |
(1.5+0.25)×4= |
4.2÷0.1= |
4.2÷3.5= |
2.14-0.9= |
27+456+73= |
12÷0.3= |
2.87÷0.7= |
13÷4= |
24÷4+56÷4= |
2.1×0.3÷2.1= |
2.3-0÷8.1= |
1.37-1.37÷1.37= |
4.4÷(5×0.2)= |
7×1.3= |
0.96÷0.06= |
0.36×0.3= |
0.35÷0.7= |
13.65÷13= |
4×0.8×0.25×1.25= |
13+0.7÷0.7= |
7.05×23.7+7.05×76.3= |
0.125×3.2×2.5= |
(12+23.1÷0.75)×0.4-5.12= |
728+199= |
637-201= |
16×25= |
1.6×[(12-7.2)÷(0.84÷2.1)]= |
查看答案和解析>>
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)
來源:
題型:
14.76-5.76- |
4÷8×2 |
64× |
6×5-3×2 |
13×+4×10 |
198÷198+ |
12.5×+3×1.25 |
+++ |
(3.7×5-4.7×3.7)÷ |
[0.3+(+□)×3]÷0.3=860 |
56× |
18.75-(4.5-7.25) |
3.6×31+3.14×64 |
132÷131 |
3×+4×+5×+6× |
112×(24-4)÷2.4 |
(81.4+++)÷(++) |
41.2×8.1+11×9+53.7×1.9 |
++++++ |
+++…+. |
查看答案和解析>>