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Grade 4 Mathematics Online Lessons on Algebra

Grade 4 Mathematics Online Lessons on Algebra
Areas Covered:
1. Using letters to represent numbers
2. Forming algebraic expressions
3. Simplifying algebraic expressions

Lessons (39)

• 1.    Write a letter to show the items in each of the following: a) Kamawe has some chicken in his cage. The chicken can be shown by letter_____. b) There are some bags of maize in Tanui’s granary. The bags of maize can be shown by letter_____. c) There are some zebras beside the road. The number of zebras can be shown by letter_____.
  2m 45s

• 2.    Nderi had p pencils, t rubbers and k exercise books. How many items did he have altogether?
  1m 36s

• 3.    Kirui has y goats, r sheep and s cows. How many animals does he have altogether?
  1m 41s

• 4.    There are b desks and f tables in a classroom. How many desks and tables are there altogether?
  2m 0s

• 5.    Marwa had 2e apples. He was given 3f more apples by his friend. How many apples does he have altogether?
  2m 0s

• 6.    A farmer harvested t bags of maize, k bags of wheat and 2r bags of rice. How many bags did she harvest altogether?
  2m 19s

• 7.    Omari had 20t goats. He bought 15r more goats. How many goats did he have altogether?
  1m 33s

• 8.    Aminda has c skirts, 2t blouses and y jackets. How many clothing items does she have?
  1m 46s

• 9.    There are 2x boys and 3y girls in a class. How many pupils are there in the class altogether?
  1m 34s

• 10.    Pendo had 2f trees in his farm. He planted 3s more trees. How many trees are there altogether in the farm?
  2m 9s

• 11.    Tunai had r cows. He sold p cows. How many cows remained?
  1m 50s

• 12.    A carpenter made 3x chairs. He sold 2y chairs. How many chairs remained?
  1m 30s

• 13.    A grocer had 5n watermelons. He sold 4 watermelons. How many watermelons did he remain with?
  1m 45s

• 14.    Mwendwa picked n mangoes from a tree. He ate k mangoes. How many mangoes remained?
  1m 49s

• 15.    Akinyi cooked 12p chapatis. She gave her neighbor 5q chapatis. How many chapatis did she remain with?
  1m 46s

• 16.    Johanna had 9r litres of milk. He sold 5t litres. How many litres of milk remained?
  1m 33s

• 17.    A newspaper seller had 12d newspapers. He sold 9e newspapers. How many newspapers remained?
  1m 34s

• 18.    Sidi bought 5h eggs. On her way home, 2h eggs broke. How many eggs remained?
  2m 19s

• 19.    Njuki is paid t shillings per day. How much money was he paid after working for six days?
  1m 23s

• 20.    A kettle holds b cups of tea. How many cups of tea are there in 12 such kettles?
  1m 46s

• 21.    A class has 35 pupils. Each pupil is given x exercise books. How many exercise books are given to the pupils in the class?
  1m 33s

• 22.    There are 18 children in a birthday party. Each child was given b biscuits. How many biscuits were they given in total?
  1m 19s

• 23.    There are n benches in a hall. Each bench is occupied by eight people. How many people are there in the hall altogether?
  1m 38s

• 24.    Mwai had eight rabbits. He sold each rabbit for Sh 4t. How much money did he get?
  2m 3s

• 25.    Kamende has 6 trays of eggs. Each tray has v eggs. What is the total number of eggs in these trays?
  2m 7s

• 26.    There are p classes in a school. Each class has w pupils. What is the total number of pupils in that school?
  2m 1s

• 27.    Jebii bought p mangoes. She shared the mangoes equally among 18 children. How many mangoes did each child get?
  1m 39s

• 28.    Fatma had t toy cars. She shared the toy cars equally between two boys. How many toy cars did each boy get?
  1m 29s

• 29.    A thermos flask holds x cups of porridge. The porridge was shared equally among six people. How many cups did each person get?
  1m 44s

• 30.    There are 80 packets of maize seeds in a store. The packets were shared equally among q farmers. How many packets did each farmer get?
  1m 33s

• 31.    Karendi had p watermelons. She sold the watermelons equally among five traders. How many watermelons did each trader get?
  1m 30s

• 32.    A group of six women bought w plates. They shared the plates equally among themselves. How many plates did each woman get?
  1m 38s

• 33.    Five boys picked q guavas from a tree. They shared equally among themselves. How many guavas did each boy get?
  1m 27s

• 34.    Nine girls had m marbles. They shared the marbles equally among themselves. How many marbles did each girl get?
  1m 49s

• 35.    Simplify each of the following: a) 5a + 2a b) w + 3w c) 8p + 5p + 2p
  2m 15s

• 36.    Simplify each of the following: a) 9q – 4q b) 20m – 13m
  1m 30s

• 37.    Swale had 12t coconuts, 6n lemons and 3t mangoes. How many fruits did he have altogether?
  3m 12s

• 38.    Muhando had 33 exercise books, Kanyoni had 6e exercise books and Mwanaidi had 5e exercise books. How many exercise books did they have altogether?
  1m 57s

• 39.    Naliaka sold 9p shirts, 2r pairs of shorts and 8r skirts. How many items did she sell?
  1m 50s