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Page 1 of 3 Math 9 Assignment 1.2 Name: _____________________ Square roots of rational number perfect squares 1. Write out the following decimal perfect squares – the first two have been done for you. 2 0.1 0.01 = 2 0.2 0.04 = 2 0.3 _______ = 2 0.4 _______ = 2 0.5 _______ = 2 0.6 _______ = 2 0.7 _______ = 2 0.8 _______ = 2 0.9 _______ = 2 0.11 _______ = 2 0.12 _______ = 2 0.13 _______ = 2 0.14 _______ = 2 0.15 _______ = 2 0.16 _______ = 2 0.17 _______ = 2 0.18 _______ = 2 0.19 _______ = 2 0.21 _______ = 2 0.22 _______ = 2 0.23 _______ = 2 0.24 _______ = 2 0.25 _______ = 2. Calculate the value of the following square roots. a. 0.36 b. 0.81 c. 0.01 d. 0.04 e. 0.09 f. 0.49 g. 0.25 h. 0.64 i. 0.16 j. 0.0121 k. 0.0225 l. 0.0324 m. 0.0625 n. 0.0169 3. Complete the following perfect squares – use the pattern established in the first 4 to guide you. 2 5 = __________ 2 0.5 = __________ 2 0.05 = __________ 2 0.005 = __________ 2 0.03 = __________ 2 0.02 = __________ 2 0.07 = __________ 2 0.09 = __________ 2 0.01 = __________ 2 0.004 = __________ 2 0.001 = __________ 2 0.08 = __________ 2 0.06 = __________ 2 0.011 = __________ 2 0.015 = __________ 2 0.0012 = __________ 2 1.1 ___________ = 2 1.3 _______ = 2 2.1 _______ = 2 1.5 _______ = 2 1.6 _______ = 2 2.5 _______ = 2 2.3 _______ = 2 1.9 _______ =

Math 9 Assignment 1.2 Square roots of rational number perfect squaresprintzmath.weebly.com/uploads/3/6/9/1/3691210/1.2... · 2018. 2. 1. · Page 1 of 3 Math 9 Assignment 1.2 Name:

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  • Page 1 of 3

    Math 9 Assignment 1.2 Name: _____________________ Square roots of rational number perfect squares 1. Write out the following decimal perfect squares – the first two have been done for you.

    20.1 0.01= 20.2 0.04= 20.3 _______= 20.4 _______= 20.5 _______=

    20.6 _______= 20.7 _______= 20.8 _______= 20.9 _______= 20.11 _______=

    20.12 _______= 20.13 _______= 20.14 _______= 20.15 _______= 20.16 _______=

    20.17 _______= 20.18 _______= 20.19 _______= 20.21 _______= 20.22 _______=

    20.23 _______= 20.24 _______= 20.25 _______= 2. Calculate the value of the following square roots. a. 0.36 b. 0.81 c. 0.01 d. 0.04 e. 0.09 f. 0.49 g. 0.25 h. 0.64 i. 0.16 j. 0.0121 k. 0.0225 l. 0.0324 m. 0.0625 n. 0.0169 3. Complete the following perfect squares – use the pattern established in the first 4 to guide you. 25 = __________ 20.5 = __________ 20.05 = __________ 20.005 = __________

    20.03 = __________ 20.02 = __________ 20.07 = __________ 20.09 = __________

    20.01 = __________ 20.004 = __________ 20.001 = __________ 20.08 = __________

    20.06 = __________ 20.011 = __________ 20.015 = __________ 20.0012 = __________

    21.1 ___________= 21.3 _______= 22.1 _______= 21.5 _______=

    21.6 _______= 22.5 _______= 22.3 _______= 21.9 _______=

  • Page 2 of 3

    4. Calculate the value of the following square roots. a. 0.0025 b. 0.0009 c. 0.0081 d. 0.0016 e. 0.0004 f. 0.0064 g. 0.0036 h. 0.000121 i. 0.000001 j. 0.000225 k. 0.000064 l. 0.000144 m. 1.21 n. 2.25 o. 6.25 p. 1.69 q. 2.89 r. 4.84 s. 5.29 t. 3.24 u. 5.76 5. Write out the following fractional perfect squares – the first few have been done for you.

    21 12 4æ ö =ç ÷è ø

    21 1

    3 9æ ö =ç ÷è ø

    21

    4æ ö =ç ÷è ø

    21

    5æ ö =ç ÷è ø

    21

    6æ ö =ç ÷è ø

    22 4

    3 9æ ö =ç ÷è ø

    23

    4æ ö =ç ÷è ø

    22

    5æ ö =ç ÷è ø

    23

    5æ ö =ç ÷è ø

    24

    5æ ö =ç ÷è ø

    25

    6æ ö =ç ÷è ø

    21

    7æ ö =ç ÷è ø

    22

    7æ ö =ç ÷è ø

    26

    7æ ö =ç ÷è ø

    21

    8æ ö =ç ÷è ø

    23

    8æ ö =ç ÷è ø

    25

    8æ ö =ç ÷è ø

    27

    8æ ö =ç ÷è ø

    21

    9æ ö =ç ÷è ø

    21

    10æ ö =ç ÷è ø

    23

    10æ ö =ç ÷è ø

    21

    11æ ö =ç ÷è ø

    25

    11æ ö =ç ÷è ø

    21

    12æ ö =ç ÷è ø

    27

    15æ ö =ç ÷è ø

    6. Calculate the value of the following square roots. Reduce your fractions but leave improper fractions.

    a. 14

    b. 49

    c. 425

    d. 1144

    e. 1225

    f. 4169

    g. 149

    h. 2536

    i. 1649

    j. 9100

    k. 36121

    l. 9196

    m. 494

    n. 259

    o. 14449

    p. 36100

    q. 144225

    r. 25625

    s. 25664

    t. 81144

    u. 36576

  • Page 3 of 3

    1.2 Answers 1) 0.01 0.04 0.09 0.16 0.25 0.36 0.49 0.64 0.81 0.0121 0.0144 0.0169 0.0196 0.0225 0.0256 0.0289 0.0324 0.0361 0.0441 0.0484 0.0529 0.0576 0.0625 2a) 0.6 b) 0.9 c) 0.1 d) 0.2 e) 0.3 f) 0.7 g) 0.5 h) 0.8 i) 0.4 j) 0.11 k) 0.15 l) 0.18 m) 0.25 n) 0.13 3) 25 0.25 0.0025 0.000025 0.0009 0.0004 0.0049 0.0081 0.0001 0.000016 0.000001 0.0064 0.0036 0.000121 0.000225 0.00000144 1.21 1.69 4.41 2.25 2.56 6.25 5.29 3.61 4a) 0.05 b) 0.03 c) 0.09 d) 0.04 e) 0.02 f) 0.08 g) 0.06 h) 0.011 i) 0.001 j) 0.015 k) 0.008 l) 0.012 m) 1.1 n) 1.5 o) 2.5 p) 1.3 q) 1.7 r) 2.2 s) 2.3 t) 1.8 u) 2.4 5) 14

    19

    116

    125

    136

    49

    916

    425

    925

    1625

    2536

    149

    449

    3649

    164

    964

    2564

    4964

    181

    1100

    9100

    1121

    25121

    1144

    49225

    6a) 12 b) 23 c)

    25 d)

    112 e)

    115 f)

    213 g)

    17 h)

    56 i)

    47 j)

    310 k)

    611 l)

    314 m)

    72 n)

    53

    o) 127 p) 35 q)

    45 r)

    15 s) 2 t)

    34 u)

    14