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
8 × 10 = ______
6 × 10 = ______
5 × 10 = ______
77 + 10 = ______
66 + 20 = ______
1 × 10 = ______
56 + 10 = ______
76 − 10 = ______
80 − 10 = ______
51 + 10 = ______
31 − 10 = ______
7 × 10 = ______
16 + 20 = ______
54 + 10 = ______
87 + 20 = ______
11 + 10 = ______
60 + 10 = ______
80 + 10 = ______
17 + 20 = ______
29 − 10 = ______
