400 x 800 = 320000. When solving these I find it easiest to work out the problem without the zeros first eg. 4 x 8 = 32 then add the amount of zeros contained in the question so in this example(800x400) 4 zeros so add the amount of zeros(4 zeros) to the basic question answer (32) so therefore equals 320000
400 x 2 = 800
20% of 2000 = 2000*20/100 = 400 50% of 400/50% = 400*100/50 = 800 So 50% of 800 equals 400, which is 20% of 2000.
To find the percent of a number, you have to make a ratio. 8 x 400 = 100 You have to cross multiply: 800=400x and divide. 800/400=x 2=x 2% of 400 is 8.
765 can be rounded to 800, and 433 to 400. 800 x 400 = 320,000
yes, 400 + 400 is 800
400 x 2 = 800
20% of 2000 = 2000*20/100 = 400 50% of 400/50% = 400*100/50 = 800 So 50% of 800 equals 400, which is 20% of 2000.
To find the percent of a number, you have to make a ratio. 8 x 400 = 100 You have to cross multiply: 800=400x and divide. 800/400=x 2=x 2% of 400 is 8.
765 can be rounded to 800, and 433 to 400. 800 x 400 = 320,000
20 x 20 = 400
400-800 = -400
800 = 1 x 800, 2 x 400, 4 x 200, 5 x 160, 8 x 100, 10 x 80, 16 x 50, 20 x 40, 25 x 32, 32 x 25, 40 x 20, 50 x 16, 80 x 10, 100 x 8, 160 x 5, 200 x 4, 400 x 2, 800 x 1.
yes, 400 + 400 is 800
796 - 387 = 800 - 390 = 800 - (400 - 10) = 800 - 400 + 10 = 400 + 10 = 410
400/800=0.5 0.5*100= 50 400= 50% of 800
400 is 50% of 800.
800 divided by 400 is two.