Part1:口算8.760.5= 52.5= 4.75-0.98= 0.54+3.27= 7.47+2.86=37.35+6.97= 3.65.9= 8.412= 10.3-8.7= 3.4+5.9=Part2:脱式计算 0.3299+250.07 8.764.5-15.70.14 （13.6-4.17）2.5 15.324+4.680.25Part3:解方程44.5-36.36 5.1-3.50.812.58 84 Part1:口算0.374 7.49+12.8 16.240 15.32-13.6 1.20.80.68+3.75 21.5+6.8 0.669.3 31050 22.7-6.58Part2:脱式计算 （58.4+15.6）2.3 168-3.7620+7.38 0.8（5-0.68）1.2 2.53.212.5 Part3:解方程1.365.4 0.753 0.5-0.215 6300.5Part1:口算16913 10.3-1.42 902.14 3.57+4.64 1564086.34 1.57+7.46 10.8-5.13 13530 4.96+2.25Part2:脱式计算 3.9+（10-0.6）8 9.564.25+0.254.4 0.271.9-0.83 482.7-1.815 Part3:解方程1.25-30.5 1.443.5 （-0.4）1.43.3 4-0.48.4 51324185613141313221Part1:口算 + - + + - 4373851276112585527265 + = + = + = - = + = 103151154923198Part2:脱式计算 -（ + ） + + 125207201751925492 + + + -（ + ） 831254373Part3:解方程+ = - = 1255465- =1 - = 2011015142411015237315121Part1:口算 - = 1- - = + -2= + = + - =6179521513514121515332 - = - = - = + = + =412131312154Part2:脱式计算 + + = + - 1513125657585 + - 2- - 1035252Part3:解方程+ =28 =45 21615421- = += 4112581121837354328365Part1:口算 - = + = + = - = - = 1526574529561879412121 - = + = + = - = - = 5485125318373Part2:脱式计算 +( - ) - + 121121127984192 -( - ) -( + ) 76316165Part3:解方程2- = + = 24716724541127-= -( - )= 15261536110365536543Part1:口算 = = = 30 = + = 733110.80.9= 1.50.25= 0.53.2= 14= 9-28=19587481548391125Part2:脱式计算（ + + ）72 （ - ） 216856852194343654332 ( + ) ( - )( - ) 15146152Part3:解方程- = 2.5+3.6=9.6 5221411 -3= 1 4=3.5 5441Part1:口算2.80.25= 2.75+1 = 3 +10.2= 0.1258= 6.30.07= 32514154376544431-0.1= - = = - = 7.5 =515476416165Part2:脱式计算 9 4.25+4 + 51376831271276568348( + + ) ( + )6+ 211094Part3:解方程 2+2.7=24.7 - = 28132513819= + =42 Part1:口算305-199= 6.7+4.3= 0.3+0.32= 80.02= 2.054=8343615261916532 + = 12 = + = = +0.4= 25971112Part2:脱式计算11( + )7 101-925 7676560165 6 - 6 1036594Part3:解方程+= - =0.25 219