口算.
80×20%= 24×0.2= 5﹣= ÷3= 32=
36÷12%= 1﹣0.3= 2.1+3.25= ×1.8= (0.2)2×52=
1.45×5= ×2.4= ×3÷= 1.6×0.125=
4.7×9+4.7= 1.25×6.3×8= 6.5×2÷5= 15÷×=
×2÷×2= 1÷﹣÷1=
直接写出结果(近似值符号的只要求估算到整数).
1.02﹣0.43= 4.75﹣9.64﹣8.25+13.6= = =
= 5﹣= 125×555= 4×0.6+0.6÷4=
直接写出得数.
0.46+0.4= 10﹣4.7+5.3= 1.8×= 1.25×7+1.25=
0.02÷0.01= 5﹣3÷7= 5×÷5×= ×43=