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 − 10 = ______
39 + 10 = ______
30 − 10 = ______
62 + 10 = ______
30 + 20 = ______
34 + 10 = ______
4 × 10 = ______
73 − 10 = ______
95 − 10 = ______
55 + 10 = ______
78 − 10 = ______
83 − 10 = ______
35 + 10 = ______
1 × 10 = ______
61 − 10 = ______
5 × 10 = ______
2 × 10 = ______
68 − 10 = ______
44 + 20 = ______
79 + 20 = ______
