【五年级口算练习题】小数五年级加减法口算练习题400道及答案

【五年级口算练习题】小数五年级加减法口算练习题400道及答案

【答案】 1.5-0.5= 1-0.9= 2.3＋0.6= 0.9＋0.8= 1-0.3= 3.4-1.5=
　　1.9-0.9= 3.5-2.4= 0.36+0.64=
　　3.5+ 4.2= 6 -0.5= 2.7-0.4=
　　0.8+ 0.7= 4.5-3= 7.8-1.1=
　　1.5－0.5= 1－0.9= 2.3＋0.6= 0.9＋0.8= 1.9－0.9= 3.5 -2.4= 0.36＋0.64= 0.96－0.3= 8.65－6.31=
　　2.5+0.9= 1.2-0.5= 7.8+1.6=
　　0.39+0.15= 3-1.4= 4.7-2.8=
　　7.2-6.45= 15-0.48= 6.77-1.78=
　　3.45+5.75= 3.40+58.20= 49.80+49.20=
　　111.6-99= 7.8+21.02= 5.6-1.42=
　　12.5+0.9= 4.5-2.83= 3.75+2.25=
　　2.98+0.56= 12.53+4.67= 6.07+4.89=
　　5.64-1.78= 10.2-6.45= 5-0.41= 0.3+1.5= 2.5+9.8= 7.6+1.3= 4.4+5.7= 2.3+7.7= 5.7+3.1= 7.69+2.31= 9.16+2.64= 5.68+12.22= 16.8+16.5= 26.3+14.6= 6.9+3.4=
　　52.3+64.7= 12.75-5.3= 8.24+16.93=
　　 0.75＋0.4= 20＋0.78= 4.8＋4.2= 5.7－3= 4.9－1.7= 1.34＋0.8= 2－0.75= 8.7＋0.03= 0.2－0.09= 8.5＋2.5= 2.4－1.4= 0.68＋0.42= 7.82－7.2= 2＋9.1= 0.48＋0.52=
　　8.1－5.1= 0.78－0.24= 0.8＋0.18= 0.89－0.25= 1－0.98= 0.9＋0.1= 1－0.8= 4.5－4= 5.6＋4= 10－4.4= 6＋6.6= 9.5－2.7= 1－0.55= 3.7＋4.8= 7＋3.3= 3．25＋0．75= 2.7＋3.9= 0．7＋0．9= 0.9＋1= 14．6－0．4= 10－0．1= 14＋0．78= 3＋2.7= 5－0．08= 1．64＋2．35= 1．1－1= 8．34－6．22= 1.3＋4.3= 7.2＋6.9= 9.3－8.8= 4.4＋15.99= 19.8－5.6= 96.3－56.2 = 79.2＋56.8= 1.9＋25.793= 88－69.21=
　　136.5－105= 73.4+52.1= 93.1-20.9= 63.1-11= 0.33+9.8= 7.8+6.9= 0.2+2.7= 5.6+4.4= 9.4+0.06=
　　0.7+0.4= 0.5－0.45= 10－0.1=
　　1.8－0.9= 12.6－1.2= 17+0.33= 1.01+0.6= 7－0.05= 9－0.26=
　　6.14+3.83= 7.93-1.64= 5.23-2.36=
　　 3.44+3.36= 8.63-3.48= 1.16+4.77= 7.74-5.85= 9.35-4.74= 4.93+4.75= 8.17-5.26= 2.26-0.86= 6.55+4.68= 1.1+4.5= 1.9+3.4= 3.45+4.6= 4.45+4.5= 9.4-2.75= 7.3-1.26= 3.83+5.55= 2.75+1.3= 7.6-2.15= 1.9+6.2= 7.1-6.6= 6.8-2.8= 44.4+1.4= 1.7+9.66= 43.3+6.3=
　　55.5-1.9= 38.9-5.55= 64.41+8.67=
　　0.7＋0.9= 3.8＋0.6= 8.24+3.76=
　　4.1－3.8= 14＋0.78= 14.6-0.34=
　　1.3+8.56= 0.8-0.55= 1-0.03= 30.5+3.05= 0.8-0.45= 3.25＋0.75=
　　0.78+2.2= 5-0.08= 10-0.1=
　　10－7.64= 13.6＋8.46= 0.99＋1.1=
　　1.23+6.52= 5.32-0.93= 6.35-5.23= 1.23+5.69= 1.26+5.21= 0.96-0.23= 7.26-4.93= 2.16-0.23= 4.63+8.9=
　　9.28+7.32= 5.2-0.9= 2.65+9.32=
　　7.65-6.23= 8.28+4.75= 9.23+5.45= 6.23-4.53= 8.52+4.65= 5.2+2.63= 4.62+8.95= 7.24+6.21= 3.8-2.3=
　　0.7＋0.9= 0.8＋0.6= 8.24＋3.76= 4.1－3.8= 14＋0.78= 14.6－0.34= 1.3＋8.56= 0.8－0.55= 10－0.1=
　　4－0.04= 1－0.03= 30.5＋3.05= 0.8－0.45= 0.78＋2.2= 5－0.08= 3.25＋0.75= 8.65－6.31= 10－7.64=
　　13.6＋8.46= 0.99＋1.1= 3.17+3.43=
　　6.82+15.55= 34.52-17.87= 12.23+4.57= 23.75+8.64=　　 17.83+9.5= 7.83－0.5= 3.45+8.7= 16.55+1.3= 8.54+5.96= 27.38-5.34= 2.62+4.66= 8.5+9.63=
　　4.76 - 1.12 = 1.45 + 2.7 = 4.31 + 21.76 =
　　9.46 + 18.28 = 42.39 - 20.92 = 21.85 + 37.08=
　　3.2+1.8= 0.9+0.6= 0.1－0.01= 1.2－0.12= 1－0.385= 3.2－2.3= 0.76－0.38= 15－7.3= 2.1+0.2= 0.3+0.7= 3.6+1.6= 7.5-0.5= 2.13-0.02= 3.51+0.2= 102+0.3= 1.12-1.02= 4.5-0.01= 1.9-0.4=

就是这个解释