A 23 + n = 89 n = 65 horses
B 23 - n = 89 n = 109 horses
C 23 + n = 89 n = 66 horses
D 33 + n = 89 n = 56 horses
Odd because odd + odd = even
Even because odd + even equals even
375 - 107 = n n = 268 students
375 + 170 = n n = 545 students
375 + 107 = n n = 482 students
375 + 107 = n n = 483 students
Is this a true fact family?
33 + 22 = 55
22 + 33 = 55
55 - 22 = 33
55 - 33 = 22
Tačno
Netačno
a) b)
