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
70 − 10 = ______
8 × 10 = ______
80 − 10 = ______
72 − 10 = ______
28 + 10 = ______
92 − 10 = ______
46 + 10 = ______
52 − 10 = ______
9 × 10 = ______
47 − 10 = ______
7 × 10 = ______
51 + 20 = ______
72 + 20 = ______
15 + 10 = ______
85 − 10 = ______
37 − 10 = ______
44 + 20 = ______
6 × 10 = ______
3 × 10 = ______
38 + 20 = ______
