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
37 − 10 = ______
9 × 10 = ______
8 × 10 = ______
1 × 10 = ______
40 + 10 = ______
47 + 10 = ______
55 + 10 = ______
99 − 10 = ______
40 − 10 = ______
36 − 10 = ______
51 − 10 = ______
31 + 20 = ______
55 − 10 = ______
81 + 10 = ______
66 + 20 = ______
90 − 10 = ______
7 × 10 = ______
67 + 10 = ______
80 + 20 = ______
79 − 10 = ______
