4.9: Adding & Subtracting Decimals Review

  1. Find the sum.
    1. [latex]4.87 + 3.91 + 0.33 + 5.68 =[/latex]
    2. [latex]0.187 + 28.27 + 8.039 + 4.44 =[/latex]
    3. [latex]5.38 +4.7102 + 24.003 +0.78 =[/latex]
    4. [latex]3.912 + 46 + 72.04 + 19.19 =[/latex]

     

  2. Solve the following word problems.
    1. Cynthia spent $4.53 on butter, $10.97 on a big bag of flour and $3.50 on eggs.  How much did she spend?
    2. A seaplane pilot is finding the weight of the freight and passengers on her next flight. The freight weighs 800.25 kg. All of the passengers together weigh 452.5 kg. How much is the total weight on the next flight?
    3. Use a ruler or metre stick to measure the edges of the top of the table where you are sitting. Draw and label a diagram, then use your measurements to find the perimeter.

     

  3. Find the difference.
    1. [latex]82.07 - 14.86 =[/latex]
    2. [latex]89.506 - 16.039 =[/latex]
    3. [latex]$72.53 - $51.30 =[/latex]
    4. [latex]$7 - $0.31 =[/latex]

     

  4. Solve the following word problems.
    1. Babies often lose a bit of weight in the first few days after they are born. They then usually go on to grow quite quickly. When Oliver was first born, he weighed 3.36 kg.  When he was two days old, he weighed 3.19 kg. How much weight did he lose?
    2. Jules is installing trim around a doorway. The perimeter of the door is 5.78 m. Jules will not be putting trim on the base of the doorway. If the base of the doorway measures 0.85 m, how much trim should she purchase?
    3. Carissa is helping her relatives calculate a budget for a memorial feast. Her family has $575 saved up. Several friends and family members have made contributions totalling $360. The expenses will include $120 for a hall rental, $85.50 for table and chair rental, $50 for a microphone and sound system, $45.68 for insurance coverage, and $600 for gifts. How much money will Carissa’s family have left after the expenses?

     

  5. Read the following transaction record in Table 4.9.1 and answer the questions.
    Table 4.9.1: Transaction Record
    Date Transactions Debit Credit Running Balance
    — Balance Forward — — 559.58
    2022-04-20 CASH DEPOSIT — 200.00 —
    2022-04-21 INTERAC PAYMENT Kaien Island Optometry 74.53 — —
    2022-04-29 DEPOSIT CANADA CHILD TAX CREDIT — 89.70 —
    2022-05-01 Electric Funds Transfer PAYCHEQUE — 609.74 —
    2022-05-08 Internet Banking INTERNET BILL PAY BC HYDRO 52.46 — —
    2022-05-08 INTERAC PAYMENT FEES 1.75 — —
    2022-05-10 INTERAC PAYMENT Safeway 73.02 — —
    2022-05-10 INTERAC PAYMENT FEES 1.89 — —
    2022-05-12 CASH WITHDRAWAL 60.00 — —
      1. Complete the running balance column. You may use a calculator.
      2. How much was the pay transfer?
      3. What amount is the child tax credit?
      4. What day was the cash withdrawal made?
      5. How much was the cash deposit?
      6. Why do you think the gas station and grocery store purchases have a fee?

4.9: Review Answers

  1. Find the sum.
    1. 14.79
    2. 40.936
    3. 34.8732
    4. 141.142

     

  2. Solve the following word problems.
    1. $19.00
    2. 86.6m

     

  3. Find the difference.
    1. 67.21
    2. 73.467
    3. $21.23
    4. $6.69

     

  4. Solve the following word problems.
    1. Oliver lost 0.17 kg or 170 g.
    2. Jules should purchase 4.93 m of trim.
    3. Carissa’s family will have $33.82 left.

     

  5. Read the following transaction record and answer the questions.
    1. Table 4.9.1: Question 5 Answers
      Date Transactions Debit Credit Running Balance
      — Balance Forward — — 559.58
      2022-04-20 CASH DEPOSIT — 200.00 685.05
      2022-04-21 INTERAC PAYMENT Kaien Island Optometry 74.53 — 774.75
      2022-04-29 DEPOSIT CANADA CHILD TAX CREDIT — 89.70 1384.49
      2022-05-01 Electric Funds Transfer PAYCHEQUE — 609.74 734.49
      2022-05-08 Internet Banking INTERNET BILL PAY BC HYDRO 52.46 — 682.03
      2022-05-08 INTERAC PAYMENT FEES 1.75 — 680.28
      2022-05-10 INTERAC PAYMENT Safeway 73.02 — 607.26
      2022-05-10 INTERAC PAYMENT FEES 1.89 — 605.37
      2022-05-12 CASH WITHDRAWAL 60.00 — 545.37
    2. $609.74
    3. $89.70
    4. May 12, 2010
    5. $200.00
    6. Some banks charge people for using their debit cards at places other than the bank.

Attribution

This chapter has been adapted from Unit 2 Review in Adult Literacy Fundamental Mathematics: Book 4 – 2nd Edition (BCcampus) by Katherine Arendt, Mercedes de la Nuez, and Lix Girard (2023), which is under a CC BY 4.0 license.

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Intermediate PreAlgebra: Building Success Copyright © 2024 by Kim Tamblyn, TRU Open Press is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

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