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
6 × 10 = ______
11 + 10 = ______
3 × 10 = ______
9 × 10 = ______
1 × 10 = ______
31 − 10 = ______
89 + 10 = ______
13 + 20 = ______
5 × 10 = ______
7 × 10 = ______
95 − 10 = ______
29 + 20 = ______
39 − 10 = ______
67 + 20 = ______
82 + 20 = ______
51 + 20 = ______
20 + 10 = ______
35 + 10 = ______
8 × 10 = ______
12 + 10 = ______
