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410 prompts matching "Estimate before calculating an answer"
Explain My Addition Method
I am in Primary 3. I will add two numbers and tell you each step I took. Listen, then tell
Spot My 3-Digit Addition Slip
I am in Primary 3. Spot my addition mistake: I’ll show you my working for an addition sum
Library Books Addition Word Problem
I am in Primary 3. Let’s do a word problem: “There are 563 books in a library. 128 more ar
Explain My Subtraction Method
I am in Primary 3. I will subtract two numbers and tell you each step I took. Listen, then
School Hall Subtraction Word Problem
I am in Primary 3. Let’s solve a word problem: “There are 742 pupils in a hall. 259 go out
Spot My Multiplication Sentence Mistake
I am in Primary 3. Write a multiplication sentence for me that does not match the picture
Pencil Boxes Multiplication Word Problem
I am in Primary 3. Let’s solve a word problem: “Each box has 8 pencils. There are 6 boxes.
Share Counters into Equal Groups
I am in Primary 3. I will share 30 counters into 5 equal groups. Tell me how many are in e
Biscuit Sharing Word Problem
I am in Primary 3. Let’s solve a word problem: “Mama has 36 biscuits. She shares them equa
Compare Fractions with the Same Denominator
Act as my tutor. I am in Primary 3. Give me two fractions with the same denominator (e.g.,
Continue a Number Pattern
Act as my tutor. I am in Primary 3. Give me a number pattern (e.g., 120, 140, 160, __, __)
Create My Own Number Pattern
I am in Primary 3. Ask me to make up a number pattern of my own and say its rule. Then con
Spot My Number Pattern Mistake
I am in Primary 3. Continue a number pattern for me and break the rule on the fourth term.
Count On by 25s
I am in Primary 3. I will count on by 25s from a given number (e.g., 100, 125, __, __). Te
Bus Seats Counting Word Problem
I am in Primary 3. Let’s solve a word problem: “A bus has 350 seats. 100 more seats are ad
Explain My Make-1,000 Method
I am in Primary 3. I will solve a “make 1,000” problem and tell you my steps. Tell me if m
Spot My Make-1,000 Mistake
I am in Primary 3. Spot my “make 1,000” mistake: I’ll say how many more to make 1,000. Som
Worked Example: Making 1,000 on a Number Line
I am in Primary 3. Worked example: Show me how to find how many more to make 1,000 from 78
Choose a Strategy for Addition
Act as my tutor. I am in Primary 3. Give me a simple addition word problem within 1,000. A
Explain My Subtraction Strategy
I am in Primary 3. I will subtract two numbers and tell you whether I counted on, took awa