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 = ______
63 − 10 = ______
4 × 10 = ______
7 × 10 = ______
77 + 10 = ______
64 − 10 = ______
49 + 10 = ______
60 − 10 = ______
67 + 10 = ______
24 + 10 = ______
22 + 20 = ______
67 − 10 = ______
9 × 10 = ______
83 + 10 = ______
54 + 10 = ______
5 × 10 = ______
18 + 20 = ______
51 + 20 = ______
6 × 10 = ______
84 + 20 = ______
