The task involves solving multiplication problems where two-digit numbers are multiplied by other two-digit numbers. Below, I will solve each problem step by step.
---
Problem 1: \( 23 \times 23 \)
\[
23 \times 23 = 529
\]
Problem 2: \( 25 \times 24 \)
\[
25 \times 24 = 600
\]
Problem 3: \( 24 \times 23 \)
\[
24 \times 23 = 552
\]
Problem 4: \( 20 \times 18 \)
\[
20 \times 18 = 360
\]
Problem 5: \( 11 \times 12 \)
\[
11 \times 12 = 132
\]
Problem 6: \( 30 \times 50 \)
\[
30 \times 50 = 1500
\]
Problem 7: \( 13 \times 11 \)
\[
13 \times 11 = 143
\]
Problem 8: \( 30 \times 24 \)
\[
30 \times 24 = 720
\]
Problem 9: \( 54 \times 32 \)
\[
54 \times 32 = 1728
\]
Problem 10: \( 23 \times 71 \)
\[
23 \times 71 = 1633
\]
Problem 11: \( 31 \times 67 \)
\[
31 \times 67 = 2077
\]
Problem 12: \( 43 \times 55 \)
\[
43 \times 55 = 2365
\]
Problem 13: \( 34 \times 54 \)
\[
34 \times 54 = 1836
\]
Problem 14: \( 52 \times 45 \)
\[
52 \times 45 = 2340
\]
Problem 15: \( 34 \times 11 \)
\[
34 \times 11 = 374
\]
Problem 16: \( 30 \times 31 \)
\[
30 \times 31 = 930
\]
Problem 17: \( 33 \times 12 \)
\[
33 \times 12 = 396
\]
Problem 18: \( 52 \times 11 \)
\[
52 \times 11 = 572
\]
Problem 19: \( 20 \times 19 \)
\[
20 \times 19 = 380
\]
Problem 20: \( 23 \times 14 \)
\[
23 \times 14 = 322
\]
---
Final Answers:
\[
\boxed{
\begin{array}{cccc}
529 & 600 & 552 & 360 \\
132 & 1500 & 143 & 720 \\
1728 & 1633 & 2077 & 2365 \\
1836 & 2340 & 374 & 930 \\
396 & 572 & 380 & 322 \\
\end{array}
}
\]
Each multiplication problem has been solved, and the results are presented in the same order as they appear in the image.
Parent Tip: Review the logic above to help your child master the concept of multi digit multiplication worksheet grade 5.
