Estimate Products (5-2)

 $29\ \times11\approx$  

 $29\times21\approx$  

 $29\times31\approx$  

 $23\times12\approx$  

 $23\times22\approx$  

 $23\times32\approx$  

 $23\times42\approx$  

 $37\times13\approx$  

 $37\times23\approx$  

 $36\times24\approx$