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
32 + 20 = ______
56 + 10 = ______
5 × 10 = ______
65 + 20 = ______
84 − 10 = ______
43 + 20 = ______
34 + 20 = ______
79 + 10 = ______
4 × 10 = ______
87 + 20 = ______
6 × 10 = ______
77 + 10 = ______
44 − 10 = ______
90 − 10 = ______
54 − 10 = ______
44 + 10 = ______
40 + 20 = ______
83 + 20 = ______
57 − 10 = ______
51 − 10 = ______
