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
84 − 10 = ______
4 × 10 = ______
54 + 10 = ______
20 + 20 = ______
20 + 10 = ______
84 + 10 = ______
47 − 10 = ______
97 − 10 = ______
21 + 20 = ______
45 + 10 = ______
2 × 10 = ______
49 − 10 = ______
93 − 10 = ______
58 − 10 = ______
32 + 20 = ______
27 + 20 = ______
44 − 10 = ______
83 + 20 = ______
7 × 10 = ______
55 − 10 = ______
