Lacevedo525 Lacevedo525
  • 22-09-2015
  • Mathematics
contestada

Make a ten or a hundred to add mentally 339+123

Respuesta :

ZigZag27 ZigZag27
  • 22-09-2015
9+3=12
30+20=50
300+100=400
Then add.
12+50+400=462
So 339+123=462
Answer Link

Otras preguntas

Zero property 2x^3+x^2-3x=0
All governments exist in order to A. Give one person all political power B. Promote a specific religion C. Divide all well equally C. Make sure people follow th
A large group of homes Question 15 options: Communication Technology Statistics Development
In Spanish, the noun being described is _______. A. second B. fourth C. third D. first
Jacinta, Juan, and Julian have all decided to start a business together. They'll pool their resources to get it started, they'll share any profits or losses fro
which voting method was discontiued as a result of the help america vote act which was passed after the disputed presidital election of 2000
Explain briefly why social workers should take appropriate personal safety training and practice safety measures
Explain how kinetic energy transforms into potential energy. Give at least 2 examples.
can you help please?
since it was ratified over 200 years ago the constitution has been amended A- 17 times B- 7 times C- 27 times D- 10 times is it D 10 times?