Question

四年级数学题已知 O+△=10.44 口+△=6.29 O+口=7.27求△口O各是多少？

Answer 1

设O为x，△为y，口为z。
2x+2y+2z=10.44+6.29+7.27=24,
x+y+z=2/24=12,
z=12-10.44=1.56
y=12-7.27=4.73
x=12-6.29=5.71
答：O为5.71，△为4.73，口为1.56.

Answer 2

△=（10.44+6.29-7.27）÷2=4.73
O=10.44-4.73=5.71
口=7.27-5.71=1.56

Answer 3

△=（10.44+6.29-7.27）÷2=4.73
O=10.44-4.73=5.71
口=7.27-5.71=1.56

Answer 4

10.44-6.29=O-口=4.15 （4.15+7.27）÷2=O=5.71
7.27-5.71=口=1.56 10.44-5.71=△=4.73

Answer 5

△口O的总和（10.44+ 6.29+ 7.27）÷2=12
口=12-10.44=1.56
O=12-6.29=5.71
△=12-7.27 4.73