(1)27.3+73.2+72.7 (2) 585+189+215 (3) 5.85-1.75-0.25
(4)768-274-126 (5) 5.85+1.89+2.15 (6)24.8+14.6+15.4
(7)42.5-22.17-7.83 (8)3.8+1.37+6.2+12.63
(9)17.05-(2.05-6.4) (10)3.73+5.28+4.27+4.72
(11)10-3.6-1.4 (12) 1.2+2.5+1.8
(13)0.25+0.15+0.75+0.85 (14) 0.5+1.5+1.5+0.5
6.28+5.74+3.72+5.26 4.36+14.8+5.64+5.2 16.9-5.6-4.4 38.2-7.09-20.6-2.31 9.08-(5.7+1.08) 27.85-(7.85+3.4)
加法十道题
0.63+0.08=
1.26+2.89=
0.306+1.015=
0.075+0.04=
8.92+1.22=
4.63+0.76=
5.55+0.45=
3.29+3.08=
2.009+0.005=
10.88+2.12=
减法十道题
1.2-0.8=
3.45-2.89=
0.798-0.89=
15.4-3.6=
10-1.5=
5.6-4.9=
0.906-0.874=
3.5-4.8=
28.44-15.66=
123.32-23.47=