Rose had 10 kilograms of rice. She cooked 9/10 kilograms in the morning and 1/4 of the remaining in the evening. How many grams of rice did she have left?
Rose cooked 10 x 9/10 = 
<gadget id="calculator">10*9/10</gadget>
<output>9</output>
9 kilograms of rice in the morning.
She had 10 - 9 = 
<gadget id="calculator">10-9</gadget>
<output>1</output>
1 kilogram of rice left then.
One kilogram is equal to 1 x 1000 = 
<gadget id="calculator">1*1000</gadget>
<output>1_000</output>
1000 grams.
So, Rose cooked 1000 x 1/4 = 
<gadget id="calculator">1000*1/4</gadget>
<output>250</output>
250 grams of rice in the evening.
Therefore, she has 1000 - 250 = 
<gadget id="calculator">1000-250</gadget>
<output>750</output>
750 grams of rice left.

<result>750</result>