Mathematics

I am in Primary 3. Spot my subtraction mistake: I’ll show you my working for a subtraction

I am in Primary 3. Worked example: Show me how to subtract 624 – 287 using a number line w

I am in Primary 3. Spot my fraction comparing mistake: I’ll compare two fractions with the

Act as a quiz-master. I am in Primary 3. Ask me quick pattern questions like “What comes n

I am in Primary 3. Spot my “make 1,000” mistake: I’ll say how many more to make 1,000. Som

I am in Primary 3. Worked example: Show me how to find how many more to make 1,000 from 78

I am in Primary 3. I will subtract two numbers and tell you whether I counted on, took awa

I am in Primary 3. Choose a slow method for a subtraction on purpose — counting back 40 on

I am in Primary 3. Round a number to the nearest 10 for me and round 45 down instead of up

I am in Primary 3. Worked example: Show me how to round 637 to the nearest 10 using a numb

I am in Primary 3. Spot my measuring mistake: I’ll read a length from a ruler or metre sti

I am in Primary 3. Spot my mass mistake: I’ll say which object is heavier. Sometimes I’ll

I am in Primary 3. Spot my change mistake: I’ll calculate change from a note. Sometimes I’

I am in Primary 3. Spot my pictogram mistake: I’ll count the symbols in a pictogram. Somet

I am in Primary 3. Spot my bar chart mistake: I’ll read values from a bar chart. Sometimes

I am in Primary 3. Worked example: show me a problem written out as two number sentences,

I am in Primary 3. Estimate an answer for me by rounding badly — rounding 48 to 40. Let me

I am in Primary 3. Let’s solve a word problem: “A shop sells 456 bags of rice in the morni

I am in Primary 3. Worked example: show me how to check 6 times 7 by dividing the answer b

I am in Primary 3. Spot my conversion mistake: I’ll convert between units. Sometimes I’ll