四年级口算100题.doc四年级口算100题,时限10分钟内完成(N90分,优;N70分,中;60及以下分,差
45+15x6=
-5x8=
《2x4=
+8=
^4+20x5=
+124-3+20=
7.(80^20+80)^4=
+(100-10x5)=
=
=
80-25=
+45=
=
=
=
^9=
=
=
-80=
+70=
-64^8=
^6+20= -5x7= +60^3=
+18^2=
-11x5=
+7-29=
^80=
=
=
=
^25=
+70=
= -33x3= -1010=
=
=
=
=
-2200=
+80=
=
-3x200=
+204-2=
-25^5=
+8-40=
^40=
二
^24 =
二
=
二
二
=
=
=
=
=
^15 =
^24 二
=
二
=
=
=
^40 =
^20 =
-4 =
=
:4 =
^60=
=
^4 =
^5 =
^8 =
=
?6 = +80 =
80 =
=
^80 =
=
^24 =
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
答案:
45+15x6= 135 -5x8=400 ^2x4=60 +8=98 ^4+20x5= 200 +12^3+20=34 7.(80^20+80)^4=21 +(100-10x5)=120 = 9 = 800
80-25= 55 +4
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