345 tens equal 3,450 plus 7 is 3,457
No. It would be 3457.
280
Answer = 140
The answer is 350. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.110
140
The answer is 672.
There are 1000 metres in one kilometre. Therefore, 3457 kilometres is equal to 3457 x 1000 = 3457000 metres.
155
The answer is 175. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
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