6th Grade Math Textbook, Progress

144 Chapter 4

Compute. Use a calculator to check your work. (See pp. 121–122, 138–139.)

1. 63
   (2^2 3)  7 2. 21 (0.86.4)
   1.2 3. (3.24.3)
   2.5  33

Write as an expression, equation, or inequality. (See pp. 124–125, 128–129.)

Use a variable when necessary.

4. Six less than a number is 3. 5. 25 more than 7 times a number


5. the sum of a number and 41.5 7. A number doubled is greater than 484.


6. Half of ten is three less than eight. 9. Forty is the product of xand five.


7. 5 zdecreased by 3 11. The sum of zand 35 is less than 98.

Evaluate each expression. (See pp. 126–127.)

12. (x2)^2 y
    z, when x1, 13. r(q24)w
    2, when r3,
    y1.2, and z 4 q30, and w 9

Solve and check. (See pp. 130–135.)

14. a 12.535.93 15. 2495 n 209 16. 13.5c202.5


15. d
    1.92.05 18. 378  75 x 19. r2.51.37.9


16. h(3.012.3) 5 21. 185 y 123.9 22. 6953  17 m

Solve for the missing dimension in each formula. (See pp. 136–137.)

23. A bh, when A350 ft^2 24. P2(
    w), when
    12 yd
    and h20 ft and w5 yd


24. P 4 s, when P48.12 cm 26. Ve^2 , when e5 in.

1

2

Lessons 1–11

Write an equation for each. Then solve.

27. Sally is permitted 1000 calories
    a day on her diet. At lunch she
    consumed 279 and at breakfast
    344. How many calories may she
    consume at dinner?
    28. Two hundred twenty students
    competed in basketball. Teams
    of 5 players each were formed.
    How many teams were formed?

(See pp. 140–143.)

(See Still More Practice, p. 523.)

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