To solve the problem, we need to evaluate each pair of calculations and determine whether the first calculation is greater than (>), less than (<), or equal to (=) the second calculation. Let's go through each pair step by step.
Pair 1:
-
4 × 3 = 12
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2 + 9 = 11
-
Comparison: 12 > 11
Pair 2:
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30 - 17 = 13
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2 × 7 = 14
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Comparison: 13 < 14
Pair 3:
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½ of 30 = 15
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5 × 3 = 15
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Comparison: 15 = 15
Pair 4:
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30 × 4 = 120
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200 - 50 = 150
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Comparison: 120 < 150
Pair 5:
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5 × 9 = 45
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17 + 27 = 44
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Comparison: 45 > 44
Pair 6:
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18 ÷ 6 = 3
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21 - 19 = 2
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Comparison: 3 > 2
Pair 7:
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3 × 9 = 27
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100 - 72 = 28
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Comparison: 27 < 28
Pair 8:
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7 × 6 = 42
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37 + 14 = 51
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Comparison: 42 < 51
Pair 9:
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90 - 67 = 23
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6 × 4 = 24
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Comparison: 23 < 24
Pair 10:
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½ of 38 = 19
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3 × 7 = 21
-
Comparison: 19 < 21
Pair 11:
-
29 + 17 = 46
-
6 × 8 = 48
-
Comparison: 46 < 48
Pair 12:
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28 ÷ 4 = 7
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½ of 14 = 7
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Comparison: 7 = 7
Pair 13:
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40 × 3 = 120
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200 - 80 = 120
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Comparison: 120 = 120
Pair 14:
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4 × 90 = 360
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30 × 10 = 300
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Comparison: 360 > 300
Pair 15:
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9 × 5 = 45
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100 - 45 = 55
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Comparison: 45 < 55
Pair 16:
-
60 × 7 = 420
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500 - 90 = 410
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Comparison: 420 > 410
Pair 17:
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37 × 10 = 370
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600 - 220 = 380
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Comparison: 370 < 380
Pair 18:
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½ of 280 = 140
-
7 × 20 = 140
-
Comparison: 140 = 140
Pair 19:
-
30 × 8 = 240
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10 × 23 = 230
-
Comparison: 240 > 230
Pair 20:
-
7 × 9 = 63
-
38 + 37 = 75
-
Comparison: 63 < 75
Final Answer:
\[
\boxed{
\begin{array}{ll}
1) & > \\
2) & < \\
3) & = \\
4) & < \\
5) & > \\
6) & > \\
7) & < \\
8) & < \\
9) & < \\
10) & < \\
11) & < \\
12) & = \\
13) & = \\
14) & > \\
15) & < \\
16) & > \\
17) & < \\
18) & = \\
19) & > \\
20) & <
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of math practice tests.