Wednesday Learn these


9 × 2 = 18


10 × 2 = 20 11 × 2 = 22 12 × 2 = 24


2 Multiply (a)


10 × 2 (c) 9 × 2 (d) (b) 6 2 3 Problems with brackets 12 × 2 11 × 2


(a) (2 × 2) + 3 = (c) (8 × 2) + 5 = (e) (6 × 2) + 4 = (g) (11 × 2) − 2 = (i) (12 × 2) − 5 = (k) (10 × 2) − 6 =


4 Problem-solving with tables


For each problem, say whether it is a +, −, × or ÷ problem. Using your tables, write the number sentence and the answer.


Problem:


(a) A pencil costs 12 cent. Dennis bought 2 pencils. How much did he spend?


(b) A dog weighs 7kg. How many kilograms do 2 dogs weigh?


(c) How many legs do 2 horses have altogether?


Rough work


(b) (4 × 2) + 1 = (d) (1 × 2) + 1 = (f) (0 × 2) + 2 = (h) (9 × 2) − 3 = (j) (5 × 2) − 1 = (l) (3 × 2) − 2 =


r o A u f o +, −, × or ÷? Number sentence: Answer: × 12 × 2 = 24 24


1 Factor trees (a) 12


(b) 20


(c) 14


(d) 8


(e) 24


6 Strand: Number Strand Unit: Counting and numeration; Operations – multiplication Strand: Measures Strand Units: Money, Weight Skill: Problem-solving.


Week 1 | Multiply by 2


t


C


D


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o


C


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r .


t ' yn S


R


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