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 = ______
3 × 10 = ______
81 + 20 = ______
2 × 10 = ______
40 − 10 = ______
38 − 10 = ______
85 + 20 = ______
7 × 10 = ______
74 + 20 = ______
53 + 20 = ______
42 + 20 = ______
1 × 10 = ______
61 + 20 = ______
80 + 20 = ______
44 + 10 = ______
8 × 10 = ______
38 + 20 = ______
60 − 10 = ______
93 − 10 = ______
58 + 10 = ______
