Place Value and Decimals
What is the value of the digit 4 in 15.478?
Tenths, 0.4
Estimate: 289 × 32. Write the equation and product.
300 x 30=900
39 divided by 8
4.875
0.3 x 0.7=
0.21
List all factors of 42.
1,2,3,6,7,14,21,42
Write 7.206 in expanded notation.
(7 x 1) + (2 x 0.1) + (6 x 0.001)
About how much is 45.2 ÷9.4
45 ÷ 9 = 5
185 x 46=
8,510
5.07 − 3.85 = ?
1.22
Categorize the prime and composite numbers: 19, 25, 31, 33, 37
Prime: 19, 31, 37
Composite: 25, 33
Round 19.827 to the nearest tenth.
19.8
Which is closer to 150: 39 × 4 or 46 × 5? Explain how you know.
40 x 4= 160 vs. 50 x 5=250
5.4 × 3.2 = ?
17.28
1.25 + 0.98 = ?
2.23
If a teacher wants to make a seating chart for 36 students using equal rows. How many possible rows can there be and what are the combinations?
4 possible rows. 2×18, 3×12, 4×9, 6×6
Compare: 6.504 ___ 6.54
6.504 < 6.54
Estimate cost of 98 apples at $0.99 each.
100 x 1=$100
17.25 ÷ 5 = ?
3.45
79.46
Is 71 prime or composite? Explain how you know.
Prime. The only factors are 1 x 71
Order from least to greatest: 2.09, 2.009, 2.19
2.009, 2.09, 2.19
Estimate 643 x 72≈
600 x 70≈ 4200
124 books cost $8.75 each. What is the total cost?
24.57/6
4.095
Write the factors for 82 and 72.
82: 1, 2, 41, and 82
72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72