Number Theory – 38 Questions

Fill in the space by the correct answer.   1   (2 × 1,000) + (7 × 100) + (4 × 1) =     2,407   274   2,470   2,704   7,240 2   3 tens and 2 hundreds =     320   2,300   230   3,200   None of the above 3   What number is missing from the following sequence?21, 27, 33,…

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