Grade 4 Mathematics Mid Year Examination 2021 Marking Guidelines

Blouberg Ridge Primary School Mathematics Marker: G. Weddell Marking guideline Gr. 4 teachers: __________________ Date: 2 July 2021 Time allocation: 1 hour 15 min Examiner: G Weddell Moderator: ………………… Task 4: Test Total: 25  You may not make use of any notes to assist you during this test.  Your teacher may not help you in any way.  Make sure you follow the instructions carefully and answer all of the questions.  Think carefully and try your best. Good luck! Question 1 (4) Answer the following multiple choice questions. Underline the correct answer. 1.1 When a number pattern is going from biggest to smallest, we say it is: (1) a) Ascending b) Increasing c) Descending  Knowledge d) Rising 1.2 24 is a multiple of: (1) a) 20 b) 6  Routine c) 5 d) 48 1.3 9 x 12 = ______ (1) a) 120 b) 96 c) 108  Routine d) 112 [ ………. / 3 ] 1 of 6

1.4 What is the following number rounded off to? 3784 ≈ 3800 (1) a) The nearest hundred  Routine b) The nearest ten c) The nearest thousand d) The nearest five Question 2 (10) 2.1 Write down the number value of the underlined number: (1) 4785 : 80  Routine 2.2 Round off the following numbers to the: (1) Nearest ten: 4 996 ≈ 5 000  Routine 2.3 Write out the following number in words: (1) 3709: Three thousand seven hundred and nine.  Routine 2.4 Write the correct number for: (1) Eight thousand and twenty-nine : 8029  Routine 2.5 2.5 Fill in the missing number on the number line below: (1)  Routine 50 200 350 500 650 2.6 List the first 5 multiples of 12: Knowledge (1) 12 , 24 , 36 , 48 , 60  2.7 Use < , > or = for the numbers below: (1) 6754 > 6574  Routine [ …….. / 8 ] 2 of 6

2.8 Complete the following factor ladder: Knowledge (1) 42 1 42 2 21  6 7 2.9 Complete the flow diagram below: Routine (2) 6  12 24 48 8 ÷2 X4 16 32 16  100 200 Question 3 (3) 3.1 What is the rule for the following number sequence: (1) 3 , 9 , 27 , 81 , 243 Rule: X 3 / multiplying by 3 / times 3.  Knowledge 3.2 Use the geometric pattern to help you complete the table below: Complex (1) Term 1 Term 2 Term 3 Term 4  Term of pattern 1 2 3 4 5 Number of circles 1 3 6 10 15 [……... / 5 ] 3 of 6

3.3 Use the geometric pattern to answer the questions that follow: Term 1: Term 2: Term 3: a) Please draw term 4 in the block below: (use a ruler) (1)  Complex Question 4 (6) Use the space provided to answer the following questions: 4.1 3565 + 4726 =  Knowledge (1) Breaking down: Arrow: 3565 + 4726 =  3565 + 4726 =  3000 + 500 + 60 + 5 = 3565 OR 3565 + 4000 → 7565 + 4000 + 700 + 20 + 6 = 4726 7565 + 700 → 8265 7000 + 1200 + 80 + 11 = 8291  8265 + 20 → 8285 8285 + 6 → 8291  4.2 5864 – 3641 =  Knowledge (1) Breaking down: Arrow: 5864 – 3641 =  5864 – 3641 =  5000 + 800 + 60 + 4 = 5864 OR 5864 – 3000 = 2864 - 3000 + 600 + 40 + 1 = 3641 2864 – 600 = 2264 2000 + 200 + 20 + 3 = 2223  2264 – 40 = 2224 2224 – 1 = 2223  [……... / 3 ] 4 of 6

4.3 78 x 6 =  Complex (2) 78 x 6 =  (70 + 8) x 6 =  (70 x 6) + (8 x 6) =  420 + 48 = 468   4.4 144 ÷ 4 =  (Use the clueboard to help you) Complex (2) Clue board 144 ÷ 4 = 36 1x4=4 2x4=8 3 x 4 = 12 30 + 5 + 1 = 36  4 x 4 = 16 4 144 5 x 4 = 20 -120 10 x 4 = 40 24  20 x 4 = 80 30 x 4 = 120 -20 40 x 4 = 160 4 50 x 4 = 200 -4 0 Help us solve a problem on the next page! [ …….. / 4 ] 5 of 6

Question 5 (2) Miss Desmeules just won R4 842 in the lottery. She decides to use 3254 to buy presents for the other grade 4 teachers. How much money does she have left? Problem solving (2) R: Miss Desmeules - Presents R4 842 - R3 254 N: 4 842 – 3 254 =   W: Breaking down: 4000 + 800 + 40 + 2 = 4842 - 3000 + 200 + 50 + 4 = 3254 1000 + 500 + 80 + 8 = 1588 Arrow: 4842 – 3000 → 1842 1842 – 200 → 1642 1642 – 50 → 1592 1592 – 4 → 1588 A: Miss Desmeules has R1588 left.  [ ……… / 2 ] 6 of 6