in 2-13,estimate first .then find each product.
2. 0.2 3. 3.9
× 4.6. ×7.1
--------- -------
4. 5.4 5. 15.3
×0.1 × 6.4
-------- --------
6. 9.3 × 5.8= 7. 23.7 × 4.4=
8. 0.8 × 0.5= 9. 13.2 × 0.3=
10.7.9 × 6.8= 11. 1.6 × 26.1=
12.0.9 × 0.6= 13. 0.5×96.0=
That is all.
