2.42*3.20 step by step

7.744

Step-by-step explanation:

3.20=3.2

you can multiply just 242 and 32 then pop in the decimal point later

242*32=242*30 + 242*2

242*3*10=726*10=7260

242*2=484

7260+484=7744

2*3 (rounded version of numbers) is 6

so the answer after putting decimal point should be around 6

77.44 is way too hight

7.744 is decently close to 6

so the answer is 7.744

452,489 to the nearest thousand is 452,000