Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
82 + 20 = ______
9 × 10 = ______
7 × 10 = ______
43 + 10 = ______
38 − 10 = ______
29 − 10 = ______
8 × 10 = ______
1 × 10 = ______
5 × 10 = ______
20 + 20 = ______
36 + 10 = ______
21 − 10 = ______
69 + 20 = ______
56 − 10 = ______
37 + 20 = ______
21 + 20 = ______
46 + 20 = ______
37 − 10 = ______
29 + 20 = ______
6 × 10 = ______
