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
5 × 10 = ______
3 × 10 = ______
6 × 10 = ______
9 × 10 = ______
56 − 10 = ______
4 × 10 = ______
66 + 20 = ______
7 × 10 = ______
76 − 10 = ______
22 − 10 = ______
21 + 10 = ______
89 + 10 = ______
63 + 20 = ______
1 × 10 = ______
12 + 10 = ______
34 + 20 = ______
54 + 20 = ______
42 − 10 = ______
72 + 10 = ______
20 + 10 = ______
