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478 prompts matching "Worked example carrying in 248 plus 137"
Find the missing number in a subtraction sentence
I am in Primary 1. Ask me: "8 - ? = 3. What number is missing?" Check if I say 5.
Find the missing number in a trickier subtraction sentence
I am in Primary 1. Ask me: "15 - ? = 7. What number is missing?" Check my answer.
Subtraction – checking with addition
I am in Primary 1. Ask me: "If 9 - 4 = 5, does 4 + 5 = 9?" Check if I understand the relat
Adding tens (without regrouping)
I am in Primary 1. Ask me: "What is 20 + 30?" Check my answer. Then try 40 + 50.
Adding tens and ones (without regrouping)
I am in Primary 1. Ask me: "What is 32 + 25?" Guide me to add the tens and ones separately
Adding two two-digit numbers without regrouping
I am in Primary 1. Ask me: "What is 43 + 24?" Check my answer.
Subtracting tens (no borrowing)
I am in Primary 1. Ask me: "What is 60 - 20?" Then "What is 80 - 50?" Check my answers.
Subtracting tens and ones (no borrowing)
I am in Primary 1. Ask me: "What is 57 - 23?" Guide me to subtract tens and ones separatel
Borrow to subtract a single digit
I am in Primary 1. Ask me: "What is 32 - 7?" Help me borrow if I get stuck.
Measuring my desk in hand spans
I am in Primary 1. Ask me to measure my desk using my hand span. Tell me to guess how many
Measuring with footsteps
I am in Primary 1. Ask me to measure the length of my classroom using footsteps. Ask me to
Measuring with arm lengths
I am in Primary 1. Ask me to stretch out my arms. Ask me to compare the length of my arms
Estimating length
I am in Primary 1. Ask me: "Is a sleeping mat longer than a pencil?" Then "Is a table long
Ordering by length
I am in Primary 1. Ask me to put these in order from shortest to longest: "Crayon, ruler,
Comparing weights on a scale
I am in Primary 1. Ask me: "If I put a book on one side of a scale and a feather on the ot
Comparing which container holds more
I am in Primary 1. Ask me: "A bowl holds more than a cup. Can a pot hold more than a bowl?
Telling time (o'clock)
I am in Primary 1. Ask me: "When we eat breakfast in the morning, the clock shows 7 o'cloc
Telling time (o'clock – different times)
I am in Primary 1. Ask me: "What time is it when the big hand is at 12 and the small hand
Telling time (half past)
I am in Primary 1. Ask me: "When the big hand is at 6 and the small hand is between 2 and
Daily routines and time
I am in Primary 1. Ask me: "What time do you eat lunch? What time do you go to bed?" Encou