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
72 − 10 = ______
78 + 10 = ______
38 + 20 = ______
7 × 10 = ______
5 × 10 = ______
15 + 20 = ______
44 − 10 = ______
45 − 10 = ______
68 − 10 = ______
22 − 10 = ______
6 × 10 = ______
19 + 10 = ______
84 + 20 = ______
47 + 20 = ______
40 + 10 = ______
4 × 10 = ______
24 − 10 = ______
62 − 10 = ______
72 + 10 = ______
67 + 20 = ______
