6.12+3.78=
16×30%=
1.2+0.2×0.3=
0.25×2021×4=
8×7×1.25= 2─=
32 + 42= 3.25÷0.25 =
420+590= 72÷3= 0.8×4=
0.24+0.8= 1.1-0.11= 3.2+0.15= 0÷4.5=
25+85= 73.9-39.6= = =
18÷6= 798+205≈ 632÷69≈ 803-207≈