Currently viewing the tag: "Addition"
GAMES FOR A GROUP OR CLASS OF ANY SIZE
See the Home Learning Guide to find the best game for your group. All the games are played in a similar way but with variations of scoring systems.
You will need a 0 to 9 spinner or ten cards. See instructions for […]
A game for any number of players. You want to win by getting the total close to 100, so THINK MATHEMATICALLY! Concentrate on the digits in the tens column. What do you want them to add up to?
You need a set of 10 cards numbered 0 to 9 or a spinner. […]
A game with a TARGET of 1000 for any number of players. You want to win so THINK MATHEMATICALLY! What should the hundreds digits add up to? How will you choose your hundreds digits?
You will need a set of 10 cards numbered 0 to 9 or a […]
Using 3 rods of lengths from 1 to 10 units, and not using any rod more than once, you can measure all the lengths in whole units from 1 to 10 units.
For example with rods of lengths 3, 4, and 9 the measurements are:
4 – 3 = 1; 9 – 4 […]
Below are three addition- subtraction problems that are classified into Level 1, Level 2, and Level 3.
Level 1: Find the sums and difference of the numbers indicated on the diagram (vertically/horizontally)
Level 2: Fill in the empty boxes such that the sums (difference) of the horizontally and vertically arranged numbers satisfy the given […]
Add the columns one by one, add the rows, then add the diagonals. What do you notice?
Add the numbers in the squares at the corners of each parallelogram shown. What do you notice? Yes, so far all these totals have been 34.
In addition the diagram with the […]
Replace the letters in FOOT + BALL = GAME with numbers to make the sum correct. Each letter represents a different digit.
Here is one example: F=1, O=9, T=4, B=6, A=5, L=3, G=8, M=2, E=7
How many solutions can you find?
There are 224 solutions altogether.
You can work with pencil and […]
The numbers 3, 5, 7, 11, 13, 17 and 19 are prime numbers. Can you make a total of 60 from four of these numbers?
One of three columns of tally marks on The Ishango Bone gives the answer to this question. Found in the Ishango region of the Democratic Republic of […]
Choose pairs of these numbers to make the total of each pair as close to eleven thousand as possible?
Which total is closest to eleven thousand?
Which pair of numbers has the largest total?
What number would you add to each of these 8 numbers to make eleven thousand?
You might […]
The challenge is to find numbers to replace the shapes and to make this addition sum correct.
Hint: Imagine adding up the tens column.
What number do you think has to go in the hundreds place? Why?
In the simpler number puzzles 1. and 2. put different numbers in place of the […]
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