Răspuns:
[tex]1. \: a) \: 596 \times 398 = 237208 \\ 596 \times 139 = 82844 \\ 596 \times 471 = 280716 \\ 596 \times 253 = 150788 \\ \\ b) \: 43700 \div 38 = 1150 \\ 43700 \div 100 = 437 \\ 43700 \div 46 = 950 \\ 43700 \div 25 = 1748[/tex]
[tex]2. \: a) \: a \times (19704 - 19678) = 37778 \\ a \times 26 = 37778 \\ 26a = 37778 \\ a = 1453 \\ b) \: b \div (1000 - 593) = 825 \\ b \div 407 = 825 \\ \frac{1}{407} b = 825 \\ b = 335775 \\ c) \: (247078 + 87986) \div c = 69 \\ 335064 \div c = 69 \\ \frac{335064}{c} = 69 \\ 335064 = 69c \\ 69c = 335064 \\ c = 4856 \\ d) \: (4372 - 4285) \times d = 108663 \\ 87d = 108663 \\ d = 1249[/tex]
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