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
4 × 10 = ______
42 − 10 = ______
12 + 10 = ______
5 × 10 = ______
23 + 20 = ______
50 − 10 = ______
60 − 10 = ______
57 + 20 = ______
23 − 10 = ______
7 × 10 = ______
66 + 10 = ______
9 × 10 = ______
13 + 20 = ______
70 + 20 = ______
23 + 10 = ______
48 − 10 = ______
88 − 10 = ______
76 − 10 = ______
73 + 10 = ______
36 − 10 = ______
