Round the dividend
Round 8.2 ÷ 42 to estimate the answer.
8 ÷ 42 = 0.2
Estimate 14.9 ÷ 32 by rounding only the divisor
14.9 ÷ 30 = 0.5
Round 12.4 ÷ 29 and estimate
12 ÷ 30 = 0.4
Which is larger? 3.5 ÷ 18 or 7.2 ÷ 25
Estimate 3.5 ÷ 20 = 0.2 and 7.2 ÷ 25 = 0.3, so 7.2 ÷ 25 is larger.
Round 15.2 ÷ 30 and estimate.
15 ÷ 30 = 0.5
Estimate 61.8 ÷ 48 by rounding only the divisor.
61.8 ÷ 50 = 1.2
Round 48.2 ÷ 73 to estimate
50 ÷ 70 = 0.7
Which is larger? 6.4 ÷ 20 or 5.1 ÷ 15
Estimate 6.4 ÷ 20 = 0.3 and 5.1 ÷ 15 = 0.3, so they’re approximately equal.
Round 34.7 ÷ 50 to estimate
35 ÷ 50 = 0.7
Estimate 25.4 ÷ 41 by rounding only the divisor.
25.4 ÷ 40 = 0.6
Round 19.9 ÷ 51 and estimate
20 ÷ 50 = 0.4
Which is larger? 45.5 ÷ 22 or 56.3 ÷ 28
Estimate 45.5 ÷ 20 = 2.3 and 56.3 ÷ 30 = 1.9, so 45.5 ÷ 22 is larger.
Round 71.6 ÷ 85 and find the estimated quotient
72 ÷ 85 = 0.8
Estimate 83.6 ÷ 21 by rounding only the divisor.
83.6 ÷ 20 = 4.2
Round 76.4 ÷ 26 and estimate
75 ÷ 25 = 3
Which is larger? 99.2 ÷ 33 or 74.1 ÷ 28
Estimate 99.2 ÷ 30 = 3.3 and 74.1 ÷ 30 = 2.57, so 99.2 ÷ 33 is larger.
Round 121.9 ÷ 24 to the nearest whole number and estimate
122 ÷ 24 = 5
Estimate 107.5 ÷ 66 by rounding only the divisor
107.5 ÷ 70 = 1.5
Round 135.7 ÷ 44 to the nearest ten and estimate
140 ÷ 40 = 3.5
Which is larger? 142.7 ÷ 15 or 124.9 ÷ 20
Estimate 142.7 ÷ 15 = 9.5 and 124.9 ÷ 20 = 6.2, so 142.7 ÷ 15 is larger.