计算题分项训练
一、直接写出得数
7÷1.4= 16.5+4.7= 3.9×0.2= 760+93= 0.9-0.26=
13+53= 14-15= 43×18= 2-67= 0÷12÷89= (38+34)×8= 4+33= 1.88+1.2= 46-0.13= 200×0.2%= 7.2÷8= 400÷25÷8
3213635+5= 2-8= 10×56= 7÷3= ( 4-16)×12= 7-7×17= 42+32= 10-0.13= 125×16= 0.37+9.63= 1135+4= 4-0.06=
(3231413935+5)÷5 2-2×5= 9+3= ( 4+8)×8= 0÷11×19=
137÷3÷17= 4+??1??2??= 7-2.95= 7.2÷0.09= 1.6×25= 102=
3115138-8= 16+12= 8÷4= 1-9= 712×47= 56 ×0×18= 45×10-1= (1235 + 5 )÷5= 2000-199= 5÷7= 18.6÷0.01= 4.8-3.6= 25×36= 114+3=
10-16-56= 78-0.3= 1-98%= 1-75155×7= 12×(6+12)=
1.3+12.1+8.7= 4.2+1.68= 1÷3= 2-225= 11+3=
11114753+ 2= 4.5×200= 1÷10%= 5-8+5= 25×7= 8-0.75= 0.43+1.25+2.57= 1000-909= 5.6+4.4= 602-302=
13+14= 1-29×92= 1-78= 40×50%=
1÷0.01= (1-110)÷12210= 0.125×8= 4÷5= 5-0.3= 7
×(217+14)= 4.6-2.7= 1÷0.05= 2-2÷3=
3-25= 1.8÷35= 212453-4= 0÷5= 4―9―9=
38+12= 1÷7×17= 5×100%= 15+18+45= 16?+56?=
10%÷100%= 10×10%= 10÷1000%= 7÷9=
1×5÷1 1÷5÷1÷51= 1÷7+6÷7= 2.05-1.5= 5.7799.9+1=99.9+0.1= 1-0.009= 1-÷= 2+0.3=
55 1÷
A+0= A×0= A÷0= A-0= A×1= A÷A= A-A= A÷1= 1÷A= A+A+A=
11A= A×= A÷3=
2313BB12B+2A= X-X= -= 3.6B-0.6B= B8CC212A2C+B= 2%A+A= += A×A= 2%A×A=
BB321+2%= 8889+1111= 2.6万+4.4万= 2.4-= 25%×4 =
520.66+0.66= 9+= 92.6+7.4= 3.57+2.2= 1-95%
921 99+111= 4+4= 207%+0.73= 0.2+= 20×1%=
5311139535+= += += 0.37+1.6= 2+7= 235477882230+2= 8.37-1.6= 1-0.25= 7- = 1-1%= 1-=
95761.4-0.6= 1-98%= :6= 1÷ 0.1万 42-32=
7A×A×A= A÷A÷A= 2A+
5.38-(1.8+2.38)= 0.25×(2.6-2.4) = 4.9+120+5.1=
22×2÷×2=
331331411116--= 7-7×= +×0= ++-= 773232742461114.27+(5.73+6) = 8÷-×8= ++=
885561147299(0.6+1.5)×4= -+= 0÷×=
5859972513532+11= ×8+8×= 4.33-33%-4= 1-+=
44882111(-)×15= 5.4×80%×0= (+)×3×4= 0÷99÷1000= 5334(0.99+0.9)÷9= 4.29-(9.5-5.71)=
二、 简便计算:
33+×35+64×0.6 7.19―2.17―4.83 32 ×1.25×2.5 55
9543161911+++ 1800÷25 ×+×+×20% 11811851351313
101×101-101 (
55423554-)×+- -+ 12165349694725×25-×10 7.5×102 9.9+99.9+999.9 +0.3 3737
18.74-(6.92+8.74) 36.5×0.69+6.35×6.9
0.98×101-0.98
12.5×4×2.5×8×0.3 45.6-35.81+24.4-5.19 100.47-(47%+50)
45.6+35.81+24.4+54.19 2043-198 19.8+86.43+20.2+57%
55×99+ 885347×+÷ 125×2.5×3.2 1.25×92 7775
9.27-(3.5-0.73) 99.25-(25%-50)
78+3.73++6.27 15151325+++ 13.71+(4.375+9,29+5.625) 6556 9556+56+56+56+56+56
7.8×25+0.78×750 345三、计算:(计算时不能跳步计算)
89×〔34-(716-14 ) (112+113)×6+7÷13 1 〔2- (53-1.5)×1217〕÷851 15÷〔 (21113+5)×13〕-4 0.64
25%×76-0。25×46+14×70
+298 345-289 〔11.4+8.6×(2.8-1.3)〕÷3 ÷〔 (14-0.05)×58〕 〔34÷(14+58)〕÷(1-13) ÷(112-4.5)+85 ÷0.4
(589+221)÷〔 56×( 〔 16×
〔1- (0.5+
543112-)〕 〔 (+)÷+〕×250% 8745451135191 +(1-)〕÷ ×〔 20-(-)÷25%〕 4147224311)÷×0.75〕 1800× (1-99%)÷13× 8491971442101 × (+3÷8) ÷〔 (+)×〕- 2081553116
1110÷〔56× (
四、求未知数: ⅹ-
3353151-)〕× 〔÷(+)〕÷(1-) 783744826ⅹ=10 3ⅹ-38=112 ⅹ:2=0.15:0.9 2.8+4ⅹ=19.2 7
ⅹ-10%=18 6ⅹ-2.1×4=9.6 7ⅹ+4.2=5.6 2ⅹ÷5=
1.9ⅹ-0.6ⅹ=1.69 4×(0.8+ⅹ) =7.2 (ⅹ-7)÷3=8
1 10351:ⅹ =: 8162