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GregM
For number 32, there is 25 blocks in all. 25 is one fourth of 100 (percent means out of 100), so, after you count up all the shaded blocks, multiply it by 4. After doing this you should have 16 times 4. Once multiplying, you should get the answer:
64%
there are 25 squares in all. to find the percentage of what is shaded, 16 squares are shaded so do 16÷25. the quotient will be a decimal. so take the decimal and throw it away and put a percent sign at the end of the number.