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
2 × 10 = ______
84 − 10 = ______
70 + 20 = ______
58 + 20 = ______
14 + 20 = ______
80 + 10 = ______
3 × 10 = ______
66 + 20 = ______
52 − 10 = ______
21 + 10 = ______
58 − 10 = ______
35 − 10 = ______
61 + 20 = ______
86 + 20 = ______
55 + 10 = ______
77 − 10 = ______
48 + 20 = ______
96 − 10 = ______
86 − 10 = ______
7 × 10 = ______
