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
67 + 10 = ______
8 × 10 = ______
27 − 10 = ______
30 + 10 = ______
4 × 10 = ______
9 × 10 = ______
40 + 20 = ______
7 × 10 = ______
3 × 10 = ______
1 × 10 = ______
71 + 10 = ______
54 + 20 = ______
6 × 10 = ______
87 − 10 = ______
14 + 20 = ______
84 + 20 = ______
23 − 10 = ______
42 + 20 = ______
76 − 10 = ______
44 + 10 = ______
