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
89 + 10 = ______
4 × 10 = ______
89 + 20 = ______
3 × 10 = ______
1 × 10 = ______
41 − 10 = ______
63 + 20 = ______
37 − 10 = ______
18 + 10 = ______
29 + 10 = ______
53 + 10 = ______
68 − 10 = ______
88 − 10 = ______
7 × 10 = ______
97 − 10 = ______
66 + 20 = ______
8 × 10 = ______
13 + 20 = ______
61 + 10 = ______
22 + 20 = ______
