To solve the problems in the worksheet, we need to find the missing factor \( N \) in each equation. The general approach is to use division, as the equation \( a \times N = b \) can be rewritten as \( N = \frac{b}{a} \).
Let's solve each problem step by step:
---
Problem 1: \( 30 \times N = 930 \)
\[
N = \frac{930}{30} = 31
\]
Problem 2: \( 33 \times N = 462 \)
\[
N = \frac{462}{33} = 14
\]
Problem 3: \( 19 \times N = 437 \)
\[
N = \frac{437}{19} = 23
\]
Problem 4: \( 34 \times N = 544 \)
\[
N = \frac{544}{34} = 16
\]
Problem 5: \( 30 \times N = 990 \)
\[
N = \frac{990}{30} = 33
\]
Problem 6: \( 27 \times N = 324 \)
\[
N = \frac{324}{27} = 12
\]
Problem 7: \( 40 \times N = 1480 \)
\[
N = \frac{1480}{40} = 37
\]
Problem 8: \( N \times 27 = 459 \)
\[
N = \frac{459}{27} = 17
\]
Problem 9: \( 28 \times N = 672 \)
\[
N = \frac{672}{28} = 24
\]
Problem 10: \( N \times 21 = 693 \)
\[
N = \frac{693}{21} = 33
\]
Problem 11: \( N \times 38 = 494 \)
\[
N = \frac{494}{38} = 13
\]
Problem 12: \( 13 \times N = 481 \)
\[
N = \frac{481}{13} = 37
\]
Problem 13: \( 18 \times N = 252 \)
\[
N = \frac{252}{18} = 14
\]
Problem 14: \( N \times 39 = 546 \)
\[
N = \frac{546}{39} = 14
\]
Problem 15: \( N \times 22 = 550 \)
\[
N = \frac{550}{22} = 25
\]
Problem 16: \( N \times 34 = 578 \)
\[
N = \frac{578}{34} = 17
\]
Problem 17: \( N \times 33 = 1122 \)
\[
N = \frac{1122}{33} = 34
\]
Problem 18: \( N \times 27 = 351 \)
\[
N = \frac{351}{27} = 13
\]
Problem 19: \( N \times 31 = 682 \)
\[
N = \frac{682}{31} = 22
\]
Problem 20: \( N \times 30 = 390 \)
\[
N = \frac{390}{30} = 13
\]
Problem 21: \( 29 \times N = 754 \)
\[
N = \frac{754}{29} = 26
\]
Problem 22: \( 31 \times N = 1147 \)
\[
N = \frac{1147}{31} = 37
\]
Problem 23: \( N \times 33 = 363 \)
\[
N = \frac{363}{33} = 11
\]
Problem 24: \( N \times 27 = 999 \)
\[
N = \frac{999}{27} = 37
\]
---
Final Answers:
\[
\boxed{
\begin{array}{ll}
1) & 31 \\
2) & 14 \\
3) & 23 \\
4) & 16 \\
5) & 33 \\
6) & 12 \\
7) & 37 \\
8) & 17 \\
9) & 24 \\
10) & 33 \\
11) & 13 \\
12) & 37 \\
13) & 14 \\
14) & 14 \\
15) & 25 \\
16) & 17 \\
17) & 34 \\
18) & 13 \\
19) & 22 \\
20) & 13 \\
21) & 26 \\
22) & 37 \\
23) & 11 \\
24) & 37 \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of 12 grade math worksheet.
