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
26 + 10 = ______
44 + 10 = ______
5 × 10 = ______
2 × 10 = ______
66 + 20 = ______
83 + 10 = ______
89 − 10 = ______
25 + 20 = ______
7 × 10 = ______
31 + 10 = ______
62 + 20 = ______
81 + 20 = ______
19 + 20 = ______
94 − 10 = ______
1 × 10 = ______
38 − 10 = ______
33 + 20 = ______
84 + 20 = ______
23 − 10 = ______
88 − 10 = ______
