Week 4

Arithmetic

1. 15 -9 =
2. ? = 40 +50
3. 2 x ? = 12
4. ? + 20 = 48
5. 7 + 7 +3 =

Questions

1. 12 x 4 =
2. 16 x 5 =
3. 24 x 2 =
4. 31 x 5 =
5. 43 x 3 =

Reasoning and Problem solving

Squeak thinks this equation is right.

4 × 21 = 2 × 42

Is she right? Explain why.

Arithmetic

1. 345 + 6 +
2. ? – 8 = 23
3. 328 + ? = 376
4. 5 x ? = 35
5. 12  + 12 + 3 =

Questions

1. 24 x 3 =
2. 49 x 4 =
3. 37 x 8 =
4. 28 x 5 =
5. 58 x 3 =

Reasoning and Problem solving

Always, sometimes, never?

A two-digit number multiplied by a one-digit number has a two-digit product.

Arithmetic

1. 235 + 16 =
2. 237 + 40 =
3. ? – 15 = 66
4. 626 + ? = 712
5. 3 x ? = 24

Questions

1. 124 x 4 =
2. 156 x 5 =
3. 127 x 3 =
4. 182 x 3 =
5. 149 x 4 =

Reasoning and Problem solving

How close can you get to 100?

Use each digit once in the multiplication.

2       3         4  

?? x ? =