Week 1 Lesson 1: Palimages
A palimage of a counting number is the number that has the same digits as the
given number but in reverse order. For example, 659 and 956 are palimages; so
are 1327 and 7231. Now add 354 and it palimage. Call this sum X. Add X and its
palimage. Call this sum Y. Add Y and its palimage. Call this sum Z. What is the
value of Z? Solve this problem and then remove the rectangle to check your
answer.
1
354
+ 453
807
X= 807
1
807
+708
1,515
Y= 1,515
1,515
5,151
6,666
Z= 6,666
Go to the next
slide and solve
the problem.
Add 567 and it palimage. Call this sum X. Add X and
its palimage. Call this sum Y. Add Y and its palimage.
Call this sum Z. What is the value of Z? Check your
answer by removing the blue rectangle.
Go to the next
slide and solve
the problem.
Multiply 24 and it palimage. Call this product
X. What is the value of X? Solve the problem
and check your answer by removing the blue
rectangle.
1
24
X 42
42
x 20
840
42
x 4
168
840
+168
1,008
X= 1,008