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
1 × 10 = ______
6 × 10 = ______
71 − 10 = ______
8 × 10 = ______
19 + 20 = ______
35 − 10 = ______
76 + 20 = ______
67 + 10 = ______
45 − 10 = ______
7 × 10 = ______
64 + 10 = ______
9 × 10 = ______
31 − 10 = ______
70 − 10 = ______
32 + 10 = ______
4 × 10 = ______
34 + 10 = ______
91 − 10 = ______
75 − 10 = ______
66 + 10 = ______
