A costume designer bought 1.4 kg of sequince. She used 250 grams to make a crown and 400 grams to make a cape. How many grams of sequence were left?

Find the total amount in grams.

1 kg = 1000 g

1.4 * 1000 = 1400

So she bought a total of 1400 grams.

Add up the grams she used:

400 + 250 = 650

Subtract it from the total:

1400 - 650 = 750

So 750 grams of sequence were left.

1kg = 1000 grams;

1.4 kg = 1.4 * 1000 = 1400 grams;

1400 - 250 - 400 = 1150 - 400 = 750 grams of sequence were left;