garcialuis60292 garcialuis60292
  • 04-04-2020
  • Mathematics
contestada

Use mental math to find the sum of 43 and 57

Respuesta :

Аноним Аноним
  • 04-04-2020

Answer:

100

Step-by-step explanation:

43+57=100

I added 3+7=10

Then 40+50=90 and added them

90+10=100

Answer Link
kyleotw kyleotw
  • 04-04-2020

Answer: 100

Step-by-step explanation:

You know that 3+7=10

You know that 40+50=90

90+10=100

Answer Link

Otras preguntas

Use the image below to answer the following question (ruler not to scale). If magnet B is moved closer to magnet A, how will magnetic potential energy be affect
What are 86.98 times 348.088 divided by 1,159,053
Is “she’s a forest fire” a metaphor or hyperbole?
Most tweets are not _____; anyone can see them. O private O public O political O educational
The religions of Islam and Christianity developed from Judaism true false
How many grams of sucrose must be dissolved in 250 ml to prepare the 0.15 mol / L solution?
Enjal paid Rs 15,255 for smart phone with 10% discount and 13% vat. Find marked price of that smart phone.​
Emily makes $24 per hour. She worked 80 hours of regular time for the last pay period and 5 hours of overtime at $36 per hour.
Sasha can mow 3/8 of an acre of grass in 45 minutes. How many acres of grass does Sasha mow per hour.
Triangle XYZ, X equals 27 cm, Y equals 79 cm and angle C equals 142Degrees. Find the length of Z, to the nearest centimeter.