1.206×100=÷10=
0.84×1000=÷10=
a×2×b= t×6= m+m+m= 40×125=
340×20= 30×110= 29×602≈ 298×19≈
0+932= 8.4+1.5= 10.7-4.2= 2.3+2= 4.35+5.26=
654-50= 7.5+1.9= 5.2-0.6= 3-2.6= 0.48-0.25=
5÷0.02= 37.6-25.8= 234÷3= 45×7%=
2.4×2.5= ×5.6= ÷ = + =