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
41 + 20 = ______
97 − 10 = ______
25 + 20 = ______
6 × 10 = ______
58 − 10 = ______
87 − 10 = ______
86 − 10 = ______
27 + 10 = ______
40 − 10 = ______
28 + 10 = ______
84 − 10 = ______
82 + 10 = ______
13 + 20 = ______
4 × 10 = ______
39 + 20 = ______
33 + 20 = ______
82 + 20 = ______
61 + 10 = ______
14 + 20 = ______
2 × 10 = ______
