PDF chapter test TRY NOW

1. 1.93×1010+7.84×1012 \(=\) i×10i
 
2. 8.922×10122.85×1010 \(=\) i×10i
 
3. 2.26×1012×6.049×103 \(=\) i×10i
 
4. 4.4×104÷2.2×102 \(=\) i×10i