You could try 80/2
2400 - without using a calculator !
24 - without using a calculator !
Yes. There are numerous ways this could be done, assuming the multiplication and division keys are working. 20 x 2 = 40 8 x 5 = 40 16 x 2.5 80 / 2 = 40 120 / 3 = 40 200 / 5 = 40
Without using a graphing calculator the possible answer is: length = 40 metres and width = 20 metres because: Area = 40*20 = 800 square metres Perimeter = 40+40+20+20 = 120 metres
1240... without the aid of a calculator !
If using a calculator type in 40 divided by 100 and multiplied by 20. Ans: 8 However, if not using a calculator take 10% = 4 and multiply by 2. Ans:8
40 50% is a half, and a half of 80 is 40
1% is 0.01 and 0.01 times 40 is 0.4 or (40/100)*1
10 hours & 40 minutes - without the aid of a calculator !
69 - without the aid of a calculator !
13/40 = 0.325 by long division, or using a calculator.
"39+1=" would do it. Or if you are in the middle of multiplying, then "20x2"