There are income limits and phaseout zones for the 2018 Child Tax Credit and Credit for Other Dependents, but what you have posted is not accurate. The phaseout starts at $400k for married filing joint filers, and $200k for all other filing statuses. There is a significantly higher income allowance with the new credits than there was under the previous tax law, and the Child Tax Credit is also higher (it doubled from 2017 to 2018).
Use the worksheet that starts on pg. 42 of the 1040 instructions that I provided a link for above.
Edited to add: the income limits you posted are for the 2018 Earned Income Tax Credit.